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Worksheets

Chemistry Unit Test Review

Total questions: 500

Worksheet time: 12hrs 42mins

Name
Class
Date
1.
What is the Law of Conservation of mass?
a)
Mass is created in a chemical reaction
b)
Mass is created in a physical change
c)
New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
d)
Mass is never created or destroyed
2.
In a reaction A + B ----> C,  reactant A has 5g and product  C has 9g. How many grams does reactant B should have? 
a)
4g
b)
5g
c)
9g
d)
14g
3.
The number in front of a compound or element is a 
a)
Subscript
b)
Coefficient
c)
Superscript
d)
Charge
4.
The number to the lower side of an element is a 
a)
Subscript
b)
Superscript
c)
Coefficient
d)
Charge
5.
Matter can not be created nor destroyed: it can only be
a)
Destroyed a little bit
b)
Invisible
c)
Transformed, changed
d)
None of the above
6.
If a reaction starts with a total 75g of reactants it should produce 
a)
a total of 40g of products
b)
a total of 75g of products
c)
a total of 180 g of products
d)
None of the above
7.
In the reaction AB-----> A + B reactant AB has 12g and product B has 5g. How many grams should product A have?
a)
17g
b)
2g
c)
7g
d)
None of the above
8.
Bob puts 200 grams of ice into a pitcher with 900 grams of water. He gets distracted and comes back later to find that the ice has melted in the water. How many grams of water does Bob now have in the pitcher?
a)
200 g
b)
700 g
c)
1,100 g
9.
Matter can not be created nor destroyed: it can only be
a)
Destroyed a little bit
b)
Invisible
c)
Transformed, changed
d)
None of the above
10.
The number to the lower side of an element is a 
a)
Subscript
b)
Superscript
c)
Coefficient
d)
Charge
11.
The number in front of a compound or element is a 
a)
Subscript
b)
Coefficient
c)
Superscript
d)
Charge
12.
The coefficient in  3H2O is
a)
6
b)
2
c)
3
d)
5
13.
If reaction starts with 20g of reactants it should produce 
a)
a total of 40g of products
b)
a total of 10g of products
c)
a total of 80 g of products
d)
a total of 20g of products
14.
What will weigh more when a chemical change is complete?  The reactants before the chemical reaction, or the product after the reaction is complete?
a)
They both will weigh the same
b)
The product always weighs more than the reactant
c)
The reactant will weigh more than the product
d)
They both will loose mass after the reaction
15.
Since gasses weigh nothing, when they are produced in a reaction they do not have to be accounted for.  
a)
True
b)
False
16.
Which are the reactants in the following reaction?
2Mg + O2 ---> 2MgO 
a)
Mg and O
b)
MgO
c)
Mg and MgO
d)
O and MgO
17.
How many oxygen atoms are in this chemical formula?
a)
6 oxygen atoms
b)
2 oxygen atoms
c)
3 oxygen atoms
d)
4 oxygen atoms
18.
24 g of magnesium reacts with 38 g of fluorine to produce _____ g magnesium fluoride
a)
62 
b)
38
c)
24
d)
14
19.
When CaCO3 is heated, it forms CaO and CO2. Which of these statements best describes the mass of the products if 100 g of CaCO3 is heated?
a)
The difference in the products’ masses is equal to the mass of the CaCO3
b)
The sum of the products’ masses is less than the mass of the CaCO3
c)
The mass of each product is equal to the mass of the CaCO3
d)
The sum of the products’ masses equals the mass of the CaCO3
20.

Which of the following are Subscripts in this Chemical Formula: 3Fe2O4

a)

3,4

b)

3,2

c)

2,4

d)

6

21.

The Coefficient (3) in the Chemical Formula, 3H2O, tells you how many _____________ there are.

a)

Atoms of Hydrogen

b)

Atoms of Oxygen

c)

Atoms of Water

d)

Molecules of Water

22.

The Subscript (2) in the Chemical Formula, 3H2O, tells you how many _____________ there are.

a)

Atoms of Hydrogen

b)

Atoms of Oxygen

c)

Atoms of Water

d)

Molecules of Water

23.
How many nitrogen atoms does NH3 have?
a)
1
b)
2
c)
3
d)
4
24.

32 g of Oxygen completely reacts with 8 g of Hydrogen to produce _____ g Water

a)

8

b)

12

c)

24

d)

40

25.

How many Sulfur atoms are present in the reactants of the following equation: 2SO2 + 2H2O2 ----> 2H2SO4

a)

2

b)

3

c)

4

d)

8

26.

How many Oxygen atoms are present in the product of the following equation: 2SO2 + 2H2O2 ----> 2H2SO4

a)

2

b)

3

c)

4

d)

8

27.

How many Hydrogen atoms are present in the product of the following equation: 2SO2 + 2H2O2 ----> 2H2SO4

a)

2

b)

3

c)

4

d)

8

28.
The number of atoms of  N (nitrogen) in 3N2O5 is
a)
2
b)
5
c)
6
d)
15
29.

A system which can be exchange both matter and energy with the surrounding.

a)

Close system

b)

Open system

30.

A system where only energy can be exchanged but not matter

a)

Close system

b)

Open system

31.

A chemical reaction that releases energy _________ and a chemical reaction that absorbs energy is called _____________.

a)

exothermic; endothermic

b)

endothermic; exothermic

c)

exothermic; accumulative

d)

liberal; endothermic

32.

A student heated a 10 gram sample of a chemical in an open container. A chemical reaction occurred, and the mass of the sample was measured again. The mass of the sample was found to be less than before the reaction. Which of the following best explains the decrease in mass of the sample?

a)

The heat caused the chemical to become less dense.

b)

Some of the lighter particles were destroyed.

c)

The reaction gave off more heat than was added.

d)

Some of the particles escaped as a gas formed.

33.

Q. 

True or False

The mass of the reactants in a chemical equation must equal the mass of the products.

a)

TRUE

b)

FALSE

34.

Which of the following is close system?

a)

A

b)

B

c)

C

d)

D

35.

Which of the following is an open system?

a)

A

b)

B

c)

C

d)

D

36.

Which of the models of a chemical reaction best represents the Law of Conservation of Mass?

a)

A

b)

B

c)

C

d)

D

37.

If reaction starts with 20g of reactants it should produce 

a)

a total of 40g of products

b)

a total of 80 g of products

c)

a total of 10g of products

d)

a total of 20g of products

38.

Anthony is performing an experiment. He adds 0.25 grams of baking soda to 5 grams of water and stirs. Anthony watches as the baking soda dissolves in the water. If Anthony weighs the water and baking soda solution, what will its mass be?

a)

4.75 grams

b)

5.25 grams

c)

5.0 grams

d)

7.5 grams

39.

Which is a chemical property?

a)

Reactivity

b)

boiling point

c)

density

d)

conductivity

40.

Which is an example of a physical property?

a)

malleability

b)

rusting

c)

reactivity

d)

flammability

41.

Boiling point is a

a)

Physical property

b)

Chemical property

c)

Real property

d)

Fake property

42.

Conductivity is a

a)

Physical property

b)

Chemical property

c)

Real property

d)

Fake property

43.

Flammability is a

a)

Chemical property

b)

Physical property

c)

Real property

d)

Fake property

44.
When you break a cracker into pieces it is a 
a)
Chemical change
b)
Physical change
c)
Chemical Weathering
d)
Physical Weathering
45.

Which of the following is a sign that a chemical reaction has occurred?

a)

change in shape

b)

melting

c)

formation of a gas

d)

dissolving

46.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
47.
Is moldy cheese a chemical or physical change?
a)
chemical
b)
physical
48.
Is spoiled meat a chemical or physical change?
a)
chemical
b)
physical
49.
Is squeezing oranges to make orange juice a physical or chemical change?
a)
physical
b)
chemical
50.
Are fireworks exploding a physical or chemical change?
a)
phyiscal 
b)
chemical
51.
Is mowing the lawn a phyiscal or chemical change?
a)
physical
b)
chemical
52.

Water is heated and changed to steam ________________

a)

Physical Change

b)

Chemical Change

53.

Food is digested in the stomach ________________

a)

Physical Change

b)

Chemical Change

54.
Fizzing, foaming, and burning are all examples of
a)
Chemical change
b)
Physical change
55.

In chemical and physical changes, mass is not created or destroyed but is only transformed into different substances.

a)

chemical change

b)

physical change

c)

law of conservation of mass

d)

physical property

56.

Cutting wood is a (a)   change.

57.

Burning wood is a (a)   change.

58.

When you mix substances together and one or more of the substances change into a new substance with different properties, this is a (a)   change.

59.

When water boils, you see bubbles. Boiling water is a (a)   change.

60.
Hardness: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
61.

Reacts with water: Chemical or Physical Property

a)
Chemical Property
b)
Physical Property
62.

Boiling point: Chemical or Physical Property

a)
Chemical Property
b)
Physical Property
63.
Luster: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
64.
Reacts with Air: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
65.

Which one of these is a chemical property?

a)

Melting point

b)

Boiling point

c)

Color

d)

Toxicity

66.
Physical properties are
a)

Properties that can be observed without changing the identity of the substance

b)

Properties that describe how a substance changes into a completely different substance

67.

the ability of a material to bend or be hammered into other shapes without breaking.

a)

Ductility

b)

Malleability

c)

Toxicity

d)

Solubility

68.

a resistance to being scratched or dented.

a)

Luster

b)

Flammability

c)

conductivity

d)

hardness

69.

 the ability to pass electricity or heat through a substance

a)

conductivity

b)

ductility

c)

oxidation

d)

malleability

70.

the ability of a substance to be drawn into thin wires

a)

Conductivity

b)

malleability

c)

ductility

d)

flammability

71.

Change in smell is the result of what?

a)

Pollution

b)

Condensation

c)

A chemical change

d)

A physical change

72.

What kind of change is exploding fireworks?

a)
b)
73.

What kind of change is baking a cake?

a)
b)
74.

What kind of change is metal rusting?

a)
b)
75.

What kind of change is freezing water into ice cubes?

a)
b)
76.

What kind of change is crushing a soda can?

a)
b)
77.

What kind of change is cutting your hair?

a)
b)
78.

What kind of change is a rotting banana?

a)
b)
79.

What kind of change is toasting bread?

a)
b)
80.

What kind of change is mixing vinegar & baking soda?

a)
b)
81.

What kind of change is squeezing juice out of an orange?

a)
b)
82.

Melting Cheese

a)

physical change

b)

chemical change

83.

Burning Wood

a)

physical change

b)

chemical change

84.

Milk Souring

a)

physical change

b)

chemical change

85.

Mixing sugar and water.

Is it a physical or chemical change?

a)

Physical

b)

Chemical

86.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

87.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

88.
Is freezing juice a physical or chemical change?
a)
Physical Change
b)
Chemical Change
89.

Mark all the examples that result in a chemical change.

a)

Cooking / Baking

b)

Boiling Water

c)

Rusting

d)

Tearing food with teeth

e)

mixing food with saliva and enzymes to break it down into glucose

90.

What is a physical property of these strawberries?

a)

Red

b)

Rotten

c)

Flammable

91.

What is a chemical property of paper?

a)

Flammable

b)

White

c)

Light

92.

Is an ice cream cone melting a physical or chemical change?

a)

Physical

b)

Chemical

93.

Is crumpling a piece of paper a physical or chemical change?

a)

Physical

b)

Chemical

94.
Which one of these is a chemical property?
a)
melting point
b)
boiling point
c)
color
d)
flammability
95.
Which of the following is not a chemical property? 
a)
rusting 
b)
boiling 
c)
rotting 
d)
burning 
96.
Ability to rust is this type of property:
a)
Physical property
b)
Chemical property
97.

Baking cookies is a chemical change. Which of the following is evidence of the chemical change? Choose all the options that are correct.

a)

Color changes from light tan to golden brown.

b)

The batter melts when it is heated in the oven.

c)

The melted batter turns from liquid to a solid after it is heated.

d)

The odor changes

98.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
99.
A mixture is the result of a physical change because...
a)
The parts can be separated
b)
A new substance is made
c)
There is a chemical reaction
d)
One part of the mixture disappears
100.
Which of these is a result of a physical change?
a)
A new odor
b)
A new gas
c)
A new chemical substance
d)
A solution
101.
Is hammering wood together to build a house a chemical or physical change?
a)
chemical
b)
physical
102.
Is a burning candle a physical or chemical change?
a)
Physical
b)
Chemical
c)

Both

d)

Neither

103.
Is water melting a physical or chemical change?
a)
Physical
b)
Chemical
104.
Is sour milk a physical or chemical change?
a)
Physical
b)
Chemical
105.
Is bending copper wire a physical or chemical change?
a)
Physical
b)
Chemical
106.
Is steam a physical or chemical change?
a)
Physical
b)
Chemical
107.
Are hard boiled eggs a physical or chemical change?
a)
Physical
b)
Chemical
108.
Is adding sugar to your coffee a physical or chemical change?
a)
Physical
b)
Chemical
109.
When baking soda and vinegar mix it creates a bubbly mess. Is this a chemical or physical change?
a)
Physical
b)
Chemical
110.
A copper penny turning greenish after a few years is an example of ...
a)
Chemical Change
b)
Physical Change
111.
A change in which NEW substances are formed.
a)
Chemical change
b)
Physical change
c)
Casual change
d)
Formal change
112.
Which of the following IS a physical change?
a)
Getting a haircut
b)
Rusty metal
c)
sour milk
d)
A compound
113.
Ripping up paper ...
a)
Chemical Change
b)
Physical Change
114.
Change in size ...
a)
Chemical Change
b)
Physical Change
115.
Causes a change in temperature ...
a)
Chemical Reaction
b)
Physical Reaction
116.
Is a firefly lighting up a physical or chemical change?
a)
Physical
b)
Chemical
117.
Is digesting your food a physical or chemical change?
a)
Physical
b)
Chemical
118.
A change in phase ...
a)
Chemical Change
b)
Physical Change
119.
An explosion occurs ...
a)
Chemical Change
b)
Physical Change
120.
When something burns it is which of these?
a)
chemical change
b)
physical change
c)
d)
121.
Is wood burning a physical or chemical change?
a)
Physical 
b)
Chemical
122.
Is mold growing on cheese a physical or chemical change?
a)
Physical 
b)
Chemical
123.

Is this photo an example of an exothermic or endothermic reaction?

a)

endothermic

b)

exothermic

124.

An ___________________ process is a process that releases energy.

a)

exothermic

b)

endothermic

125.

Is the process shown to the right exothermic or endothermic?

a)

endothermic

b)

exothermic

126.

A process in which energy is absorbed is called an .....

a)

endothermic process.

b)

exothermic process

127.

Is the chemical reaction that occurs inside a hot pack an exothermic or endothermic reaction?

a)

endothermic

b)

exothermic

128.

When heat is released it is an

a)

exothermic reaction

b)

endothermic reaction

c)

both

d)

none

129.
If a chemical reaction is EXOTHERMIC, the temperature would....
a)
Stay the same
b)
Increase
c)
Decrease
130.
During an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______. 
a)
Warm
b)
Cold
131.

Heat + Ice --> Liquid water

a)

Endothermic

b)

Exothermic

c)

Both Exo and Endo

d)

Neither Exo or Endo

132.

Fireworks are an example of

a)

exothermic

b)

endothermic

c)

both

d)

none

133.

A melting ice cube is an example of

a)

exothermic

b)

endothermic

c)

none

d)

both

134.

An ice pack in an example of

a)

exothermic

b)

endothermic

c)

both

d)

none

135.
In an endothermic reaction, heat is ...
a)
taken in or absorbed
b)
given out or released 
136.
In an exothermic reaction, heat is ...
a)
taken in or absorbed
b)
given out or released
137.

Fire is an example of

a)

exothermic reaction

b)

endothermic reaction

c)

none

d)

both

138.

Sodium metal is cut with a knife

a)
Physical 
b)
Chemical
139.

two ore more substances unevenly mixed

a)

Heterogenous mixture

b)

Homogeneous mixture

c)

compounC

d)

Substance

140.

Two or more substances evenly mixed

a)

heterogenous mixture

b)

homogeneous mixture

c)

compound

d)

substance

141.

What type of mixture is shown?

a)

Homogeneous

b)

Heterogeneous

142.

Carbon is classified as a/an _________________.

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

143.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
144.

A Taco is an example of a

a)

Homogeneous Mixture

b)

Heterogeneous Mixture

145.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
146.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
147.
The subatomic particle with a negative charge is the
a)
electron
b)
proton
c)
neutron
d)
nucleus 
148.

This picture represents which of the following?

a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

149.

What element is represented in this Bohr Model?

a)

Carbon

b)

Hydrogen

c)

Aluminum

d)

Lithium

150.

In the illustration, which is an example of a gas?

a)

Bubbles

b)

Straw

c)

Ice

d)

The Glass

151.

a)

Element

b)

Compound

c)

Heterogenous

d)

Homogenous

152.

What is located in the nucleus of an atom?

a)

protons and neutrons

b)

protons and electrons

c)

electrons and neutrons

153.

How is the Periodic Table arranged?

a)

alphabetical order

b)

atomic number

c)

the year the element was discovered

d)

Albert Einstein decided how to arrange it.

154.

How are symbols for elements written?

a)

numbers

b)

pictures

c)

letters

155.

In which direction would you find groups/families?

a)

horizontal

b)

vertical

156.

What is located on the horizontal rows on the Periodic Table?

a)

families

b)

groups

c)

periods

157.

What is the charge of a proton?

a)

positive

b)

negative

c)

neutral

158.

What is the symbol for carbon?

a)

Ca

b)

C

c)

Na

159.

The mass number of an element is the amount of _________ it has.

a)

protons

b)

protons and neutrons

c)

electrons

d)

neutrons

160.

Which of the following elements is an example of an element that conducts electricity?

a)

Aluminum

b)

Helium

c)

Boron

d)

Neon

161.

Which element would you expect to be located in group 2 of the periodic table?

a)

Lithium

b)

Carbon

c)

Sulfur

d)

Beryllium

162.

Which of the following best describes the three general groups of elements?

a)

solids, liquids, gas

b)

metals, nonmetals, gases

c)

metals, nonmetals, metalloids

d)

metals, metalloids, synthetics

163.

An element has an atomic number of 20. This means it has:

a)

20 atoms in it.

b)

20 protons.

c)

an atomic mass of 20.

d)

20 neutrons.

164.
Where is most of the mass in an atom located?
a)
in the nucleus
b)
in the protons
c)
in the neutrons
d)
in the electrons
165.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
166.
Which statement best describes an electron?
a)
Smaller mass than a proton and a negative charge
b)
Smaller mass than a proton and a positive charge
c)
Greater mass than a proton and a negative charge
d)
Greater mass than a proton and a positive charge
167.

What is the atomic number of this atom?

a)

1

b)

3

c)

4

d)

7

168.

Which element is in group 4 period 5?

a)

Zr - Zirconium

b)

Nb - Niobium

c)

C - Carbon

d)

Na - Sodium

169.

Where are most of the nonmetals found on the periodic table?

a)

left

b)

right

c)

middle

d)

bottom

170.
As you move down the first group, reactivity _________.
a)
Increases
b)
Decreases
c)
Stays the same
d)
They are all inert
171.

What groups are the most reactive METALS?

a)

2 and 3

b)

1 and 18

c)

1 and 2

d)

16 and 17

172.

Reactivity of metals increases as you move...

a)

Left

b)

Up

c)

Right

d)

Down

173.

Put the following in order of MOST reactive to least reactive.

He, Na, Fe, C

a)

Na, Fe, C, He

b)

Fe, He, Na, C

c)

C, Na, Fe, He

d)

Fe, C, Na, He

174.

Put the following elements in order from MOST reactive to LEAST reactive.

W, K, Rn, Zn

a)

K, W, Zn, Rn

b)

K, Zn, Rn, W

c)

Rn, Zn, W, K

d)

W, K, Zn, Rn

175.
What does the diagram show?
a)
A mixture of two elements
b)
A pure compound
c)
A mixture of two compounds
d)
A mixture of a compound & element
176.
What does the diagram show?
a)
A mixture of two elements
b)
A pure compound
c)
A mixture of two compounds
d)
A mixture of a compound & element
177.
Kool-Aid
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
178.

What does this picture show?

a)

element

b)

compound

c)

mixture

179.

These are the 3 states of matter.

a)

True

b)

False

180.
Sweet Tea
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
181.
What does the diagram show?
a)
A mixture of two elements
b)
A pure compound
c)
A mixture of two compounds
d)
A mixture of a compound & element
182.

What does this illustrate

a)

Elements

b)

Compunds

c)

Mixture of Elements and Compunds

d)

Mixture of Compounds

183.

Put the following elements in order from LEAST reactive to MOST reactive.

Fr, Og, Ag, Cr

a)

Og, Ag, Cr, Fr

b)

Ag, Cr, Fr, Og

c)

Fr, Og, Cr, Ag

d)

Fr, Cr, Og, Ag

184.

Neon is colorless, a poor conductor of heat and is not able to be stretched. How would it be classified?

a)

Nonmetal

b)

Metalloid

c)

Metal

d)

None of the above

185.

How many protons, electrons and neutrons are present in an atom of carbon, C, with the mass of 12?

a)

12 protons, 12 electrons, 12 neutrons

b)

6 protons, 12 electrons, 6 neutrons

c)

12 protons, 6 electrons, 12 neutrons

d)

6 protons, 6 electrons, 6 neutrons

186.

Which statement correctly describes the location and charge of the neutrons in an atom?

a)

The neutrons are inside the nucleus and have a positive charge.

b)

The neutrons are outside the nucleus and have a neutral charge.

c)

The neutrons are outside the nucleus and have a negative charge.

d)

The neutrons are inside the nucleus and have a neutral charge.

187.

What type of particles are found in the cloud surrounding the atom's nucleus?

a)

Neutral particles and positively charge particles

b)

Positive charge particles only

c)

Negatively charge particles and positively charge particles

d)

Negatively charge particles only

188.

What type of element makes up most of the periodic table?

a)

Metals

b)

Metalloids

c)

Nonmetals

189.

two ore more substances unevenly mixed

a)

Heterogenous mixture

b)

Homogeneous mixture

c)

compounC

d)

Substance

190.

Two or more substances evenly mixed

a)

heterogenous mixture

b)

homogeneous mixture

c)

compound

d)

substance

191.

organized on the peroidic table

a)

elements

b)

mixtures

c)

compounds

d)

substances

192.

can be seperated into substances by physical means

a)

elements

b)

substances

c)

mixtures

d)

solutions

193.

heterogenous and homogeneous are

a)

types of compounds

b)

types of elements

c)

types of mixtures

d)

types of solutions

194.

Which of the following statements about Mixtures is true?

a)

substances are not bonded together

b)

Two or more substances unevenly mixed together

c)

Each compound has a different chemical formula

d)

organized on the periodic table

195.

The lemonade in this glass is what type of mixture?

a)

Heterogeneous

b)

Homogeneous

196.

A physical blend of 2 or more components is called a ____.

a)

type of element

b)

mixture

c)

chemical reaction

d)

physical property

197.

A mixture in which the composition is NOT uniform throughout is called a _____ mixture.

a)

Heterogeneous

b)

Homogeneous

198.

Oil and water are each homogeneous mixtures. What happens to them when they are mixed?

a)

They form a heterogeneous mixture.

b)

They form a pure substance.

c)

They form a phase.

199.

What type of mixture is shown?

a)

Homogeneous

b)

Heterogeneous

200.

What type of substance is shown?

a)

compound

b)

heterogeneous mixture

c)

homogeneous mixture

d)

element

201.

What type of material is pictured?

a)

Element

b)

Compound

c)

Homogeneous mixture

d)

Heterogeneous mixture

202.

What type of material is pictured?

a)

Element

b)

Compound

c)

Heterogeneous mixture

d)

Homogeneous mixture

203.

Classify milk as one of these 4 types of matter.

a)

Element

b)

Compound

c)

Homogeneous mixture

d)

Heterogeneous mixture

204.

Classify these rock samples.

a)

Element

b)

Compound

c)

Homogeneous mixture

d)

Heterogeneous mixture

205.

Water is an example of ...

a)

A mixture

b)

A compound

c)

An element

206.

Combination of two or more substances (elements or compounds) that are NOT chemically bonded.

a)

mixture

b)

solution

c)

solvent

d)

solute

207.

If a mixture has different components that you can see, it is classified as a ______________.

a)

solution

b)

compound

c)

homogeneous mixture

d)

heterogeneous mixture

208.

Italian salad dressing is classified as what type of mixture?

a)

heterogeneous mixture

b)

homogeneous mixture

209.

What is Kool-Aid classified as?

a)

element

b)

Heterogeneous Mixture

c)

Homogeneous Mixture

d)

Compound

210.

Anything that has mass and takes up space.

a)

atom

b)

mixture

c)

element

d)

matter

211.

Freshly brewed black coffee is classified as what type of mixture?

a)

Heterogeneous

b)

Homogeneous

212.

Lucky Charms are classified as what type of mixture?

a)

Heterogeneous

b)

Homogeneous

213.
What type of mixture is this?
a)
homogenous mixture
b)
chemical
c)
heterogeneous mixture 
d)
solid mix
214.

NaCl is classified as a/an ________.

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

215.

Aluminum is classified as a/an ______________.

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

216.

Carbon is classified as a/an _________________.

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

217.

Air is classified as what type of mixture?

a)

Heterogeneous

b)

Homogeneous

218.

Sugar water is classified as what type of mixture?

a)

Heterogeneous

b)

Homogeneous

219.

Vinegar is classified as what type of mixture?

a)

Heterogeneous

b)

Homogeneous

220.

A mixture that appears to be evenly mixed or looks the same throughout:

a)

an atom

b)

a compound

c)

a homogeneous mixture

d)

a heterogeneous mixture

221.

A substance made up of two or more different atoms that ARE chemically combined is —

a)

an element

b)

mixture

c)

compound

d)

solution

222.

A substance that cannot be broken down into any other substance by chemical means is called —

a)

molecule

b)

mixture

c)

element

d)

compound

223.
NaHCO3 is an example of —
a)
an abbreviation
b)
a compound
c)
a mixture
d)
an element
224.

Salad is classified as a/an __________.

a)

element

b)

compound

c)

mixture

225.

A substance that contains only one kind of atom.

a)

Element

b)

Compund

c)

Mixture

226.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
227.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
228.
What is the picture displayed?
a)
atom
b)
element
c)
molecule
d)
compound
229.

Which atomic arrangement(s) represent an element?

a)

P only

b)

R only

c)

P and Q

d)

R and S

230.

A student finds a beaker containing a substance in the lab. The student filters the contents of the beaker and notices that a solid is left on the filter paper. What can the student conclude about the type of matter of the original matter?

a)

The original material was a mixture.

b)

The original material was a compound.

c)

The original material was either an element or a compound.

d)

The original material was either a mixture or a compound.

231.

Which substance(s) can be classified as a mixture?

a)

1 only

b)

4 only

c)

1 and 4

d)

2 and 3

232.

Which particle diagram can be represented as a compound?

a)
b)
c)
d)
233.

Which particle diagram can be represented as a mixture?

a)
b)
c)
d)
234.
Substance that consists of one type of atom.  It is a pure substance. Found on the Periodic Table. 
a)
Element
b)
Compound
c)
Mixture
d)
I don't know
235.
Combinations of 2 or more substances (elements and compounds) that are physically blended together. 
a)
Compound
b)
Mixture
c)
Element
d)
Substance
236.
Salad is an example of...
a)
a mixutre
b)
an element
c)
a compound
237.
If a mixture has components you can see it is a...
a)
solution
b)
compound
c)
homogeneous mixture
d)
heterogeneous mixture
238.
What is the term for combining 2 or more DIFFERENT atoms together?
a)
atoms
b)
elements
c)
molecules
d)
compounds
239.

A Taco is an example of a

a)

Homogeneous Mixture

b)

Heterogeneous Mixture

240.
What type of matter is coffee?
a)
Element
b)
Compound
c)
Heterogeneous Mixture
d)
Homogeneous Mixture
241.
The smallest particles having the same properties of an element is a (an)
a)
molecules
b)
ions and charged electrons
c)
atoms
d)
elements
242.
A _________ mixture is mixed well & you cannot see the individual parts.
a)
homogeneous
b)
heterogeneous
243.
A _________ mixture is not mixed well & you can see the individual parts.
a)
homogeneous
b)
heterogeneous
244.
A type of substance containing atoms of two or more elements chemically bonded together is a mixture.
a)
Ture
b)
False
245.
Combinations of 2 or more substances (elements and compounds) that are physically blended together. 
a)
Compound
b)
Mixture
c)
Element
d)
Substance
246.
Pure oxygen (O) is an example of...
a)
an element
b)
a mixture
c)
a compound
247.

A Mixture is defined as

a)

A combination of two or more substances that are not chemically combined

b)

A combination of compounds that are chemically bonded

c)

2 or more elements chemically bonded

248.
Are these molecules also compounds?
a)
YES
b)
NO
249.
Are these molecules also compounds?
a)
YES
b)
NO
250.

The image showing a sample of gold is an example of a(n)...

a)

element

b)

compound

c)

heterogeneous mixture

d)

homogeneous mixture

251.

Oxygen gas consists of two identical atoms of oxygen bonded together making it a(n)

a)

element.

b)

compound.

c)

homogeneous mixture.

d)

heterogeneous mixture.

252.

Which part of an atom moves quickly OUTSIDE the nucleus?

a)

proton

b)

neutron

c)

electron

d)

protons and neutrons

253.

Which diagram represents the parts of an element?

a)

Diagram (a)

b)

Diagram (b)

c)

Diagram (c)

d)

None of the diagrams represent the parts of an element.

254.

Which of the following represents the parts of a compound?

a)

Diagram (a)

b)

Diagram (b)

c)

Diagram (c)

d)

All of the diagrams represent the parts of a compound.

255.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
256.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
257.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
258.
The subatomic particle with a negative charge is the
a)
electron
b)
proton
c)
neutron
d)
nucleus 
259.

Carbon has an atomic number of 6 and an atomic mass of 12. How many neutrons does it have?

a)

6

b)

12

c)

18

d)

5

260.

This picture represents which of the following?

a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

261.

This picture represents which of the following?

a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

262.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
263.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
264.

What element is represented in this Bohr Model?

a)

Carbon

b)

Hydrogen

c)

Aluminum

d)

Lithium

265.

Beryllium has an atomic number of 4 and an atomic mass of 9. How many protons does it have?

a)

4

b)

5

c)

9

d)

13

266.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements and Compounds
d)
Mixture of Elements
267.

A force of attraction that causes a magnetic material to move

a)

force

b)

gravity

c)

magnetism

d)

conductivity

268.

Diagram(s) representing a single element

a)

A

b)

B

c)

C

d)

D

269.

What tool is most useful in determining whether an object is made of iron?

a)
b)
c)
d)
270.

Which tool would be used to measure the heat in a liquid?

a)
b)
c)
d)
271.

In the illustration, which is an example of a gas?

a)

Bubbles

b)

Straw

c)

Ice

d)

The Glass

272.

basic particle from which all elements are made

a)

atom

b)

molecule

c)

element

d)

compound

273.

Laundry detergent with blue and white crystals.

a)

Pure substance

b)

Heterogeneous mixture

c)

Homogeneous mixture

274.

Sugar dissolved in water

a)

Pure substance

b)

Heterogeneous mixture

c)

Homogeneous mixture

275.

Iron filings (Fe)

a)

Pure substance

b)

Heterogeneous mixture

c)

Homogeneous mixture

276.

Orange juice with pulp

a)

Pure substance

b)

Heterogeneous mixture

c)

Homogeneous mixture

277.

Pacific ocean

a)

Pure substance

b)

Heterogeneous mixture

c)

Homogeneous mixture

278.

Air

a)

Pure substance

b)

Heterogeneous mixture

c)

Homogeneous mixture

279.

Tap water in a glass

a)

Pure substance

b)

Heterogeneous mixture

c)

Homogeneous mixture

280.

Soil

a)

Pure substance

b)

Heterogeneous mixture

c)

Homogeneous mixture

281.

Pizza

a)

Pure substance

b)

Heterogeneous mixture

c)

Homogeneous mixture

282.

all metals are magnetic

a)

true

b)

false

283.

Milk

a)

Element

b)

Compound

c)

Heterogenous

d)

Homogenous

284.

Coca Cola

a)

Element

b)

Compound

c)

Heterogenous

d)

Homogenous

285.

H2OH_2O  


a)

Element

b)

Compound

c)

Heterogenous

d)

Homogenous

286.

CaCl2CaCl_2  

calcium chloride 

เกลือ

a)

Element

b)

Compound

c)

Heterogenous

d)

Homogenous

287.

Pizza

a)

Element

b)

Compound

c)

Heterogenous

d)

Homogenous

288.

Tea

a)

Element

b)

Compound

c)

Heterogenous

d)

Homogenous

289.

cereal

a)

Element

b)

Compound

c)

Heterogenous

d)

Homogenous

290.

a)

Element

b)

Compound

c)

Heterogenous

d)

Homogenous

291.

a)

Element

b)

Compound

c)

Heterogenous

d)

Mixture

292.

What is Chemistry

a)

the study of matter

b)

the study of life

c)

the study of people

d)

the study of earth

293.

Smallest unit of an element

a)

compound

b)

atom

c)

molecule

d)

product

294.

Ability of one substance to dissolve into another

a)

density

b)

polarity

c)

solubility

d)

solvent

295.

Which one of the following is a compound?

a)

NaCl

b)

O2

c)

Hydrogen

d)

He2

296.

Which letter represents a mixture?

a)

D

b)

G

c)

E

d)

A

297.

What is located in the nucleus of an atom?

a)

protons and neutrons

b)

protons and electrons

c)

electrons and neutrons

298.

How is the Periodic Table arranged?

a)

alphabetical order

b)

atomic number

c)

the year the element was discovered

d)

Albert Einstein decided how to arrange it.

299.

What is located on the horizontal rows on the Periodic Table?

a)

families

b)

groups

c)

periods

300.

In which direction would you find groups/families?

a)

horizontal

b)

vertical

301.

How are symbols for elements written?

a)

numbers

b)

pictures

c)

letters

302.

What is the symbol for carbon?

a)

Ca

b)

C

c)

Na

303.

What is the charge of a proton?

a)

positive

b)

negative

c)

neutral

304.

What is the charge of a neutron?

a)

positive

b)

neutral

c)

negative

305.

Negative is the charge for _____.

a)

protons

b)

neutrons

c)

electrons

306.

In which of the following states is Chlorine found at room temperature?

a)

solid

b)

liquid

c)

gas

d)

plasma

307.

The atomic number of an element is the number of _______ it has.

a)

protons

b)

neutrons

c)

electrons

d)

protons and neutrons

308.

The mass number of an element is the amount of _________ it has.

a)

protons

b)

protons and neutrons

c)

electrons

d)

neutrons

309.

Which term describes Neon?

a)

metal

b)

metalloid

c)

transition metal

d)

nonmetal

310.

Which of the following elements is an example of an element that conducts electricity?

a)

Aluminum

b)

Helium

c)

Boron

d)

Neon

311.

Which element would you expect to be located in group 2 of the periodic table?

a)

Lithium

b)

Carbon

c)

Sulfur

d)

Beryllium

312.

Which of the following best describes the three general groups of elements?

a)

solids, liquids, gas

b)

metals, nonmetals, gases

c)

metals, nonmetals, metalloids

d)

metals, metalloids, synthetics

313.

An element has an atomic number of 20. This means it has:

a)

20 atoms in it.

b)

20 protons.

c)

an atomic mass of 20.

d)

20 neutrons.

314.

Protons and electrons:

a)

have the same mass

b)

are both found in the nucleus.

c)

have opposite charges.

d)

are added together to find the atomic mass.

315.

What is the atomic number of the atom shown in the picture?

a)

13

b)

14

c)

1

d)

27

316.

What is true about the Periodic Table?

a)

Elements in the same Family have the same number of protons.

b)

Elements in the same Family have similar chemical properties.

c)

Elements in the same Family are shown in the same row.

d)

Elements in the same Family have the same number of electrons.

317.

What is NOT true about Iron?

a)

Fe is the chemical symbol.

b)

The atomic mass is 26.

c)

The atomic number is 26.

d)

It has 30 neutrons.

318.

Where is the concentration of mass in an atom?

a)

The nucleus

b)

The electron cloud

319.

__________ are the smallest unit of an element that maintains the properties of the element.

a)

Particles

b)

Atoms

c)

Protons

320.

A nucleus of an atom contains what two parts?

a)

Electrons and Protons

b)

Neutrons and Electrons

c)

Protons and Neutrons

321.

The majority of the elements in the periodic table are

a)

Non-Metals

b)

Metals

c)

Metalloids

322.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
323.
All matter is made of _________. 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
324.
Which particle has a similar mass to a proton?
a)
Electron
b)
Neutron
c)
Photon
d)
Marble
325.
Which item on this element square is the chemical symbol?
a)
Copper
b)
29
c)
Cu
d)
63.546
326.
Which is an electron?
a)
A
b)
B
c)
C
327.
Which is a neutron?
a)
A
b)
B
c)
C
328.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
329.
Which is a proton?
a)
A
b)
B
c)
C
330.

Which of the following element in period 3 would be classified as a metal?

a)

Boron (B)

b)

Sodium (Na)

c)

Argon (Ar)

d)

Silicon (Si)

331.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
332.
The simplest substance is..?
a)
Carbon
b)
An element
c)
Water
d)
A simple compound 
333.

Which scientific model could be used to predict the properties of an element?

a)

closed loop system

b)

Punnett square C.

c)

Periodic Table

d)

water cycle chart

334.

The elements fluorine, chlorine, bromine, and iodine are all found in the same group (17) on the table. These elements are grouped together because they

a)

are metals

b)

react in similar ways

c)

have the same atomic mass

d)

are noble gases

335.

Water (H2O) is not found on the Periodic Table of the Elements because water is

a)

an atom

b)

a liquid

c)

a mixture

d)

a compound

336.
What gives an atom mass?
a)
Protons & electrons in the nucleus
b)
electrons in the cloud
c)
protons & neutrons in the nucleus
d)
Protons & electrons in the cloud
337.

the smallest particle that still can be considered an element

a)

proton

b)

neutron

c)

electron

d)

atom

338.

the dense center of an atom

a)

proton

b)

nuetron

c)

nucleus

d)

election

339.

a one or two letter abbreviation for the element

a)

chemical symbol

b)

atomic number

c)

atomic mass

340.

a chart showing all of the elements arranged according to their properties

a)

atomic mass

b)

proton

c)

neutron

d)

periodic table

341.
What element is this model showing?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
342.
What element is this?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
343.
Beryllium has how many protons?
a)
4
b)
9.0122
c)
2
d)
13.0122
344.
Which subatomic particle has a negative charge?
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
345.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
346.

From this element key of Nitrogen, determine the atomic mass of nitrogen

a)

7

b)

7.01

c)

14.01

d)

21.01

347.

Look at the periodic table. Which list of elements forms a group on the periodic table?

a)

Li, Be, B, C, N, O, F, and Ne

b)

He, Ne, Ar, Kr, Xe, and Rn

c)

B, Si, As, Te, and At

d)

Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Ni, and Zd

348.

Where are most metals on the periodic table?

a)

on the left side only

b)

on the right side only

c)

in the middle only

d)

on the left side and in the middle

349.

Which of the following elements is in (period 4 , group 2)

a)

Carbon

b)

Potassium

c)

Calcium

d)

Sodium

350.

Which of the following are found on the left side of the zig zag line on the periodic table?

a)

Non-metals

b)

metalloids

c)

metals

d)

compounds

351.

What type of elements are found on the "staircase" of the periodic table?

a)

Metals

b)

Metalloids

c)

Nonmetals

352.

Where are nonmetals found on the periodic table?

a)

Left Side

b)

The Bottom

c)

Staircase

d)

Right Side

353.

Metals are...

a)

Shiny

b)

Dull

c)

Bad Conductors

d)

Brittle

354.

Nonmetals are...

a)

Shiny

b)

Dull

c)

Good Conductors

d)

Malleable

355.

What does the Atomic Number represent?

a)

Number of Protons

b)

Number of Neutrons

c)

Number of Protons and Neutrons

356.

When elements are in the same ROW they are all in the same-

a)

Chemical Symbol

b)

Period

c)

Family

357.

When elements are in the same COLUMN they are all in the same-

a)

Chemical Symbol

b)

Period

c)

Family

358.

What do we call the one or two letter abbreviations for elements on the Periodic Table?

a)

Chemical Symbol

b)

Period

c)

Family

359.

Atoms of different elements have ________ number of protons.

a)

the same

b)

different

360.

What does the atomic number tell us about an element?

a)

number of neutrons

b)

number of protons

c)

number of isotopes

d)

atomic mass

361.

Using this section of the periodic table, what is the chemical symbol for Silicon?

a)

S

b)

Si

c)

C

d)

Cl

362.

Elements in the same ________ have the most similar chemical reactivity.

a)

Chemical Symbol

b)

Period

c)

Family

363.

How are elements on the Periodic Table organized?

a)

Number of Valence Electrons

b)

Number of Isotopes

c)

Atomic Number

364.

What classification of element is Silicon?

a)

Metal

b)

Nonmetal

c)

Metalloid

365.

What classification of element is Bromine?

a)

Metal

b)

Nonmetal

c)

Metalloid

366.

What classification of element is Lithium?

a)

Metal

b)

Nonmetal

c)

Metalloid

367.

The identity of the atom is determined by the ______.

a)

Protons

b)

Electrons

c)

Neutrons

368.
a)
Periods
b)
Groups
369.
a)
Periods
b)
Groups
370.
The number at the bottom of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
chemical symbol
d)
element name
371.

Which of the following is the correct atomic model for Boron?

a)
b)
c)
372.

What is at the center of every atom?

a)

an electron

b)

only protons

c)

a molecule

d)

a nucleus

373.
How do you find out the number of protons in an atom?
a)
atomic number
b)
atomic mass
c)
charge
d)
atomic mass - atomic number
374.

Which of the following element in period 3 would be classified as a metal?

a)

Boron (B)

b)

Sodium (Na)

c)

Argon (Ar)

d)

Silicon (Si)

375.
Each column in the periodic table is called a 
a)
period
b)
group
c)
cluster
d)
unit
376.
The simplest substance is..?
a)
Carbon
b)
An element
c)
Water
d)
A simple compound 
377.

The elements fluorine, chlorine, bromine, and iodine are all found in the same group (17) on the table. These elements are grouped together because they

a)

are metals

b)

react in similar ways

c)

have the same atomic mass

d)

are noble gases

378.

Ammonia gas would be classified as

a)

a compound

b)

a mixture

c)

an element

d)

an atom

379.

True or False: Protons and electrons have about the same mass.

a)

True

b)

False

380.

True or False: Neutrons have a negative charge.

a)

True

b)

False

381.

In an atom, which is true about electrons?

a)

They are moving inside the nucleus

b)

They are moving in the space around the nucleus

c)

They are standing still in the space around the nucleus

d)

All of the above

382.

The atomic mass of carbon is 6.

a)

True

b)

False

383.

Lithium (Li) and Sodium (Na) are in the same period.

a)

True

b)

False

384.

What three elements are in the same family as Neon (Ne)?

a)

oxygen (O), nitrogen (N), and carbon (C)

b)

potassium (K), calcium (Ca), and copper (Cu)

c)

krypton (Kr), xenon (Xe), and helium (He)

d)

chromium (Cr), manganese (Mn), and cobalt (Co)

385.

Why is there a zigzag line in the periodic table of the elements?

a)

It separates naturally occurring materials made in a lab.

b)

It separates radioactive elements.

c)

It separates metals from nonmetals.

d)

It separates periods from families.

386.

Using your periodic table, identify the atomic number of sodium (Na).

a)

11

b)

16

c)

22

d)

32

387.

Based on its location in the periodic table, describe the element sulfur (S).

a)

It is in the same family as carbon.

b)

It is a metal.

c)

It sits on the line between metals and nonmetals.

d)

It is a nonmetal.

388.

Which element(s) in the table are most likely metals?

a)

W only

b)

X only

c)

V, X, and Z

d)

W and Y

389.

Which of these is a metalloid?

a)

Silicon

b)

Carbon

c)

Hydrogen

d)

All of the above

390.

Using the image, which element has chemical properties similar to those of A?

a)

W

b)

X

c)

Y

d)

Z

391.

Which element(s) in the periodic table pictured is/are metals?

a)

W and Z

b)

X, A and Y

c)

only Y

d)

X, A and W

392.
The number at the bottom of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
chemical symbol
d)
element name
393.
The number at the top of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
Chemical Symbol
d)
Element Name
394.
What is the chemical symbol for Lithium?
a)
H
b)
He
c)
Li
d)
N
395.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
396.
Electrons have a _______ electrical charge.
a)
Positive (+)
b)
Neutral (No Charge)
c)
Negative (-)
397.
Protons have a ________ electrical charge.
a)
Negative (-)
b)
Positive (+)
c)
Neutral (No Charge)
398.
In this picture, the Electrons are found in which color?
a)
Blue
b)
Red
c)
Green
399.
An Element's _____ _____ refers to just the number of Protons in the Nucleus.
a)
Atomic Mass
b)
Atomic Number
c)
Subatomic Particle
400.
An Element's ______ ______ is made up of Protons & Neutrons
a)
Atomic Number
b)
Atomic Mass
c)
Period Number
d)
Family Group
401.
The Periodic Table arranges Elements in order by
a)
decreasing Atomic Mass
b)
increasing Atomic Number
c)
decreasing Atomic Number
d)
increasing Atomic Mass
402.

What is the Atomic Mass of Carbon?

a)

6

b)

C

c)

12

403.
What is the Atomic Number for the element Copper?
a)
Cu
b)
Copper
c)
63.5
d)
29
404.
Which element symbol is NOT written correctly?
a)
Fe
b)
H
c)
al
d)
Ne
405.

Which of the following is NOT a metal?

a)

Sodium

b)

Aluminum

c)

Helium

d)

Tin

406.

If the atomic number of an element is 15 and its atomic mass is 31, the number of protons must be...

a)

15

b)

16

c)

31

d)

4

407.

Which subatomic particle does not have mass?

a)

Proton

b)

Neutron

c)

Electron

d)

Proton and Neutron

408.

What type of element makes up most of the periodic table?

a)

Metals

b)

Metalloids

c)

Nonmetals

409.

True or False: Groups are the vertical columns on the periodic table.

a)

True

b)

False

410.

Which of the following subatomic particles does NOT contribute to atomic mass?

a)

Proton

b)

Neutron

c)

Electron

411.

Neon is a member of which family of elements?

a)

Boron Family

b)

Halogens

c)

Noble Gases

d)

Alkali Metals

412.

Nonmetals are usually which state at room temperature?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

413.

What is the charge of a neutron?

a)

Positive

b)

Neutral

c)

Negative

414.

Which statement correctly describes the location and charge of the neutrons in an atom?

a)

The neutrons are inside the nucleus and have a positive charge.

b)

The neutrons are outside the nucleus and have a neutral charge.

c)

The neutrons are outside the nucleus and have a negative charge.

d)

The neutrons are inside the nucleus and have a neutral charge.

415.

What type of particles are found in the cloud surrounding the atom's nucleus?

a)

Neutral particles and positively charge particles

b)

Positive charge particles only

c)

Negatively charge particles and positively charge particles

d)

Negatively charge particles only

416.
What number indicates the nucleus?
a)
1
b)
2
c)
3
d)
4
417.
Where is most of the mass in an atom located?
a)
in the nucleus
b)
in the protons
c)
in the neutrons
d)
in the electrons
418.
The particles with no charge in an atom are the _______.
a)
electrons
b)
neutrons
c)
protons
d)
protons and neutrons
419.
What number indicates an electron?
a)
1
b)
2
c)
3
d)
4
420.
The positively charged particles of an atom are the ________.
a)
electrons
b)
protons
c)
neutrons
d)
protons & neutrons
421.
Which statement best describes an electron?
a)
Smaller mass than a proton and a negative charge
b)
Smaller mass than a proton and a positive charge
c)
Greater mass than a proton and a negative charge
d)
Greater mass than a proton and a positive charge
422.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
423.

How many protons, electrons and neutrons are present in an atom of carbon, C, with the mass of 12?

a)

12 protons, 12 electrons, 12 neutrons

b)

6 protons, 12 electrons, 6 neutrons

c)

12 protons, 6 electrons, 12 neutrons

d)

6 protons, 6 electrons, 6 neutrons

424.

What is the atomic number of this atom?

a)

1

b)

3

c)

4

d)

7

425.

Each horizontal row on the periodic table is called a:

a)

Shell

b)

Period

c)

Group

d)

Family

426.
The periodic table has __ groups.
a)
8
b)
7
c)
18
d)
2
427.

Neon is colorless, a poor conductor of heat and is not able to be stretched. How would it be classified?

a)

Nonmetal

b)

Metalloid

c)

Metal

d)

None of the above

428.

Which element is in group 4 period 5?

a)

Zr - Zirconium

b)

Nb - Niobium

c)

C - Carbon

d)

Na - Sodium

429.

Where are most of the nonmetals found on the periodic table?

a)

left

b)

right

c)

middle

d)

bottom

430.
As you move down the first group, reactivity _________.
a)
Increases
b)
Decreases
c)
Stays the same
d)
They are all inert
431.

What groups are the most reactive METALS?

a)

2 and 3

b)

1 and 18

c)

1 and 2

d)

16 and 17

432.

Francium is the most reactive element on the periodic table.

a)

True

b)

False

433.

Reactivity of metals increases as you move...

a)

Left

b)

Up

c)

Right

d)

Down

434.

Put the following in order of MOST reactive to least reactive.

He, Na, Fe, C

a)

Na, Fe, C, He

b)

Fe, He, Na, C

c)

C, Na, Fe, He

d)

Fe, C, Na, He

435.

Put the following elements in order from MOST reactive to LEAST reactive.

W, K, Rn, Zn

a)

K, W, Zn, Rn

b)

K, Zn, Rn, W

c)

Rn, Zn, W, K

d)

W, K, Zn, Rn

436.

Put the following elements in order from LEAST reactive to MOST reactive.

Fr, Og, Ag, Cr

a)

Og, Ag, Cr, Fr

b)

Ag, Cr, Fr, Og

c)

Fr, Og, Cr, Ag

d)

Fr, Cr, Og, Ag

437.
a)
Element
b)
Compound
c)
Mixture
438.
a)
Element
b)
Mixture
439.
a)
Element
b)
Compound
c)
Mixture
440.
a)
Element
b)
Compound
c)
Mixture
441.

What does this illustrate

a)

Elements

b)

Compunds

c)

Mixture of Elements and Compunds

d)

Mixture of Compounds

442.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
443.
What does the diagram show?
a)
A mixture of two elements
b)
A pure compound
c)
A mixture of two compounds
d)
A mixture of a compound & element
444.
What does the diagram show?
a)
A mixture of two elements
b)
A pure compound
c)
A mixture of two compounds
d)
A mixture of a compound & element
445.
What does the diagram show?
a)
A mixture of two elements
b)
A pure compound
c)
A mixture of two compounds
d)
A mixture of a compound & element
446.
Sweet Tea
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
447.
Kool-Aid
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
448.
Chicken soup is an example of what kind of substance?
a)
homogenous mixture
b)
solution
c)
heterogeneous mixture
d)
compound
449.

What does this picture show?

a)

element

b)

compound

c)

mixture

450.

What does this picture show?

a)

element

b)

compound

c)

mixture

451.

What does this picture show?

a)

element

b)

compound

c)

mixture

452.

What does this picture show?

a)

element

b)

compound

c)

mixture

453.

What does this picture show?

a)

element

b)

compound

c)

mixture

454.

What does this picture show?

a)

element

b)

compound

c)

mixture

455.

Gold is an example of an:

a)

element

b)

compound

c)

mixture

456.

These are the 3 states of matter.

a)

True

b)

False

457.

Does the image represent the Law of Conservation of

a)

yes

b)

no

458.
How many nitrogen atoms does NH3 have?
a)
1
b)
2
c)
3
d)
4
459.

Substances present at the start of a chemical reaction are called ____.

a)
subscripts
b)
coefficients
c)
reactants
d)
products
460.

What are the reactants in this chemical equation?

a)

6 CO2 + 6 H2O

b)

H2O

c)

C6H12O6

d)

C6H12O6 + O2

461.

What are the products in this chemical equation?

a)

CO2 + H2O

b)

H2O

c)

C6H12O6

d)

C6H12O6 + O2

462.

How many atoms of hydrogen are in

C6H12O6

a)

6

b)

12

c)

18

d)

2

463.
A 500-gram block of solid cheese is melted in a pot. Which is most likely the mass of the cheese after it is melted?
a)
500 grams, because the cheese does not gain or lose mass just because it was melted
b)
499 grams, because some of the cheese evaporates as it melts
c)
502 grams, because the cheese absorbs heat as it melts
464.
Jamie weighs a glass of water and observes its weight to be 12 ounces. Jamie then adds 6 ice cubes to the glass of water. Each ice cube weighs one ounce. After all of the ice cubes have melted, what will be theapproximate weight of the glass of water?
a)
6 
b)
12 
c)
18 ounces
465.
A 55-gram egg is placed in a pot. After the egg is boiled, which is most likely the mass of the egg?
a)
50 
b)
55 
466.
If a reaction starts with a total 75g of reactants it should produce 
a)
a total of 40g of products
b)
a total of 75g of products
c)
a total of 180 g of products
d)
None of the above
467.
12g of Carbon react with 16g of Oxygen, how much carbon monoxide (CO) is formed? 
a)
28 g
b)
4g
c)
30g
d)
12g
468.

4 grams of hydrogen and 32 grams of oxygen will combine to form:

a)

36 grams of water

b)

28 grams of hydroxide

c)

32 grams of oxygen

d)

36 grams of deuterium

469.

In a chemical reaction, 4 grams of sodium must combine with how many grams of chlorine to produce 10 grams of table salt?

a)

4 grams

b)

6 grams

c)

8 grams

d)

10 grams

470.

Why does this picture demonstrate the Law of Conservation of Mass?

a)

the number of atoms of each element are the same on both sides

b)

they start out separate and end up combined

c)

the same elements are used

d)

it doesn't demonstrate the Law of Conservation of Mass

471.

When a log is burned, what happens to the wood?

a)

The mass stays the same, but becomes smoke and ash.

b)

It disappears.

c)

The mass changes as it goes away.

d)

Nothing. You're imagining things.

472.
A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon as a result of this change?
a)
The mass of the balloon increases because the size of the balloon has increased.
b)
The mass of the balloon increases because the temperature of the balloon has increased.
c)
The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up.
473.
Jamie weighs a glass of water and observes its weight to be 12 ounces. Jamie then adds 6 ice cubes to the glass of water. Each ice cube weighs one ounce. After all of the ice cubes have melted, what will be theapproximate weight of the glass of water?
a)
6 
b)
12 
c)
18 ounces
474.

Q. 

If you have 15 grams of Baking Soda and 20 grams of Vinegar as products, what would you expect the mass of your reactants to be?

a)

15 grams

b)

5 grams

c)

20 grams

d)

35 grams

475.

Q. 

The Law of Conservation of Mass States

 

a)

Energy cannot be created nor destroyed, it can only change form.

b)

Matter cannot be created nor destroyed, it can only change form.

c)

Mass cannot be created nor destroyed, it can only change form.

d)

Mass can be created or destroyed, it cannot change form.

476.

7 g of hydrogen reacts with 17 g of oxygen to produce ______ g of water

a)

14

b)

24

c)

38

d)

62

477.

12.67 g of Carbon reacts with 25.33 g of oxygen to produce ______ g of Carbon Dioxide

a)

14

b)

24

c)

38

d)

62

478.

How many sulfur atoms must be present in the products after a reaction between the following reactants: 2SO2 +2H2O22SO_2\ +2H_2O_2  

a)

2

b)

3

c)

4

d)

8

479.

How many Hydrogen atoms must be present in the products after a reaction between the following reactants: 2SO2 +2H2O22SO_2\ +2H_2O_2  

a)

2

b)

3

c)

4

d)

8

480.

During a chemical reaction matter cannot be created or destroyed.

a)

True

b)

False

481.
Rodney tears a piece of paper weighing 1 oz into small pieces. What most likelyhappens to the weight of the sheet of paper after Rodney tears it into pieces?
a)
The 
b)
The weight is cut in half.
c)
The weight stays the same.
482.
Jason poured 500 grams of water into a container and tightly sealed it. The water was allowed to freeze. Which is most likely true about the ice that formed?
a)
The mass of the ice is the same as the mass of the water.
b)
The mass of the ice is greater than the mass of the water.
c)
The ice formed is a different substance than the water.
d)
The ice formed is the same temperature as the water.
483.
Luke creates a model to observe the water cycle. He pours water into a clear container and closes the container and weighs it. Two days later, Luke observes about half of the water has evaporated and water droplets have formed on the sides of the container. Which is the weight of the container?
a)
The container weighs the same as it did 2 days ago.
b)
The container weighs much less than it did 2 days ago.
c)
The container weighs half as much as it did 2 days ago.
484.

Matter is anything that takes up space and has mass. All matter is made up of tiny particles called atoms.

a)

True

b)

False

485.

Which characteristic would describe a physical change? 

a)

This type of change is reversible

b)

This type of changes is usually not reversible

c)

This type of change creates a new substance

d)

This type of change includes burning a substance

486.
Anthony is performing an experiment. He adds 0.25 grams of baking soda to 5 grams of water and stirs. Anthony watches as the baking soda dissolves in the water. If Anthony weighs the water and baking soda solution, what will its mass be?
a)
4.75 grams
b)
5.0 grams
c)
5.25 grams
d)
7.5 grams
487.

According to the Law of Conservation of Mass, what happens to the wood and oxygen when it is burned?

a)

The wood disappears.

b)

It stays the same chemically.

c)

The atoms in the wood and oxygen rearrange and form smoke and ash.

d)

Nothing.

488.

How many atoms are in the products below?
4Fe +3O2 → 2Fe2O34Fe\ +3O_{2\ }\rightarrow\ 2Fe_2O_3  

a)

7

b)

10

c)

17

d)

20

489.

How many oxygen atoms are in the products for the chemical reaction below?
4Fe + 3O2 → 2Fe2O34Fe\ +\ 3O_{2\ }\rightarrow\ 2Fe_2O_3  

a)

2

b)

3

c)

5

d)

6

490.
Substances present at the start of a chemical reaction
a)
subscripts
b)
coefficients
c)
reactants
d)
products
491.
Substances that form as the result of a chemical reaction
a)
products
b)
reactants
c)
coefficients
d)
subscripts
492.
Number written below & to the right of a chemical symbol
a)
subscript
b)
reactant
c)
product
d)
coefficient
493.
Number placed in front of a chemical formula
a)
product
b)
coefficient
c)
reactant
d)
subscript
494.
Substance made up of chemically combined elements
a)
atom
b)
element
c)
electron
d)
compound
495.

How many grams of OXYGEN would be needed to show conservation of mass in the example below?

a)

100 g

b)

93 g

c)

7 g

d)

0 g

496.

How many grams of coal were present at the start of the chemical change?

a)

Unknown

b)

100 g

c)

200 g

d)

50 g

497.

How many grams of CHOCOLATE POWDER are shown in the example of conservation of mass below?

a)

450 g

b)

465 g

c)

0 g

d)

15 g

498.

How many grams of LIQUID WATER are shown in the example of conservation of mass?

a)

0 g

b)

50 g

c)

100 g

d)

200 g

499.

How many grams of SLICED APPLE are shown in the example of conservation of mass?

a)

230 g

b)

235 g

c)

115 g

d)

0 g

500.

How many kilograms of SMOKE are shown in the example of conservation of mass?

a)

1 kg

b)

30 kg

c)

28 kg

d)

3 kg