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Final Practice Part 1

Total questions: 100

Worksheet time: 5hrs 33mins

Name
Class
Date
1.
Convert from meters to cm:  9 meters
a)
900 cm
b)
90 cm
c)
0.9 cm
d)
0.09 cm
2.
Convert 17 m to cm:
a)
0.17 cm
b)
0.017 cm
c)
1,700 cm
d)
170 cm
3.
Convert 300 meters to centimeters:
a)
3000 cm
b)
0.3 cm
c)
30,000 cm
d)
3 cn
4.
Convert 8 kilometers to meters
a)
800 m
b)
80,000 m
c)
8,000 m
d)
.008 m
5.
Convert 5 cm to mm:
a)
5,000mm
b)
0.5 mm
c)
0.05 mm
d)
50 mm
6.
1000 grams = _____ kilograms
a)
0.0001
b)
1,000,000
c)
10
d)
1
7.
What is the most important rule to follow in a science lab?
a)
tie hair back
b)
wear goggles
c)
follow directions
d)
get started right away
8.
Which of the following is considered safety equipment in our classroom?
a)
eyewash station
b)
emergency shower
c)
fire extinguisher
d)
all of the above
9.
You should report accidents to the teacher __.
a)
after the class is over
b)
immediately 
c)
the following day
d)
never
10.
Personal protective equipment includes:
a)
goggles, gloves, and aprons
b)
fire extinguisher, goggles, and gloves
c)
triple beam balances, fire extinguishers, and safety blanket 
d)
eye wash station, safety shower, and goggles
11.

The vertical axis of a line graph is called the __________.

a)

slope

b)

line of best fit

c)

x-axis

d)

y-axis

12.

The horizontal axis of a line graph is called the __________.

a)

slope

b)

line of best fit

c)

x-axis

d)

y-axis

13.

Which type of graph best represents data that shows a change over a period of time?

a)

line

b)

bar

c)

table

d)

circle

14.

What type of graph would you make to show how many of your classmates were born in each month of the year?

a)

line

b)

bar

c)

circle

d)

scatter plot

15.
How many more people have purple for a favorite color than red?
a)
3
b)
5
c)
7
d)
9
16.
How many people like cheese pizza the best?
a)
5
b)
10
c)
25
d)
50
17.
What is the title of the graph?
a)
Metro Bicycle Shop Weekly Sales
b)
Bicycles Sold
c)
Types of Bicycles
18.
If there are 300 seventh graders, how many students prefer choir?
a)
96
b)
24
c)
75
d)
42
19.
How many total people took the survey?
a)
50
b)
150
c)
100
d)
200
20.

What is the name of group number 1?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

21.

What is the name of group number 2?

a)

transition metals

b)

halogens

c)

metaloids

d)

alkaline earth metals

22.

where are the metaloids found

a)

far left, vertical

b)

stair step/diagonal

c)

far right horizontal

d)

at the bottom

23.

What group number are the halogens found?

a)

18 (8A)

b)

1

c)

2

d)

17 (7A)

24.

A row on the Periodic Table of Elements

a)

family

b)

period

c)

row

d)

isotope

25.
___________ is the only metal that is a liquid at room temperature.
a)
Platinum
b)
Water
c)
Tin
d)
Mercury
26.

Metals (select all that apply)

a)

are found on the right side of the periodic table.

b)

are found on the left side of the periodic table.

c)

are good conductors of heat and electricity.

d)

are brittle.

e)

are malleable and ductile.

27.

Nonmetals (select all that apply)

a)

are found on the right side of the periodic table.

b)

are found on the left side of the periodic table.

c)

are good conductors of heat and electricity.

d)

are brittle.

e)

can be solid, liquids, or gases at room temperature.

28.

The identity of an element on the periodic table is determined by the number of _______.

a)

protons

b)

neutrons

c)

electrons

d)

ions

29.

The chemical properties of an element are determined by the number of

a)

energy levels

b)

valance electrons

c)

isotopes

d)

ions

30.

Hydrogen and Helium have similar physical and chemical properties.

a)

True

b)

False

31.

There are 7 periods on the periodic table.

a)

True

b)

False

32.

How many atoms of Hydrogen are in H2O

a)

1

b)

2

c)

3

d)

more than 3

33.

How many different elements are present in H2COCH2

a)

5

b)

4

c)

3

d)

2

34.

Calculate the number of Oxygen atoms in Al(OH)3

a)

1

b)

2

c)

3

d)

4

35.

The ______ are numbers found on the lower right-hand side of an element symbol.

a)

Coefficient

b)

Exponent

c)

Multiplier

d)

Subscript

36.

Coefficients in chemical formulas...

a)

Multiply just the first atom

b)

Add to the subscripts at the end of the molecule

c)

Multiply elements without subscripts

d)

Multiply EVERYTHING!

37.

4CF2Cl2

a)

C = 4, F = 4, Cl = 2

b)

C = 1, F = 8, Cl = 8

c)

C = 4, F = 8, Cl = 8

d)

C = 1, F = 4, Cl = 8

38.

C3H5(NO3)3

a)

C = 3, H = 5, N = 3, O = 9

b)

C = 3, H = 5, N = 1, O = 9

c)

C = 9, H = 15, N = 3, O = 9

d)

C = 9, H = 15, N = 1, O = 3

39.

A ______ is a number written in front of a chemical formula.

a)

Coefficient

b)

Subscript

c)

Exponent

d)

Coordinator

40.

How many neutrons are in Neon

a)

20

b)

10

c)

30

41.

How many protons are in Neon?

a)

20

b)

10

c)

30

42.

What does the atomic mass tell you?

a)

The number of neutrons + protons

b)

The number of electrons

c)

The number of electrons + protons

43.

What does the atomic number tell you?

a)

The number of neutrons

b)

The number of protons

c)

The number of protons + neutrons

44.

Which particles are found in the nucleus?

a)

Electrons and protons

b)

Electrons and neutrons

c)

Protons and neutrons

45.

What are atoms made up of?

a)

Protons, neutrons, electrons

b)

Protons, nucleus, electrons

c)

Proteins, neutrons, electrons

46.

What is the center of the atom called?

a)

Orbital

b)

Ring

c)

Nucleus

47.

Which part of the atom has a negative charge?

a)

Proton

b)

Neutron

c)

Electron

48.

Which part of the atom has a positive charge?

a)

Proton

b)

Neutron

c)

Electron

49.

If Carbon has an atomic mass of 12 and has 6 protons, how many electrons does it have?

a)

18

b)

6

c)

12

50.

What is the atomic mass of Oxygen?

a)

8

b)

16

c)

0

51.

Identifies the number of protons in an atoms nucleus.

a)

Electron Cloud

b)

Atomic Theory

c)

Atomic Number

d)

Mass Number

52.
The subatomic particles in blue are...
a)
Neutrons
b)
Protons
c)
Electrons
53.

How do isotopes of the same element differ?

a)

Different number of protons

b)

Different number of electrons

c)

Different number of neutrons

d)

Different atomic numbers

54.

If Carbon-14 has 6 protons, how many neutrons does it have?

a)

6

b)

7

c)

8

d)

14

55.

How can you find the number of neutrons in an isotope?

a)

Subtract the atomic number from the mass number.

b)

Add the atomic number to the mass number.

c)

Multiply the atomic number by 2.

d)

Divide the mass number by the atomic number.

56.

Which of the following isotopes has the most neutrons?

a)

Oxygen-16

b)

Oxygen-17

c)

Oxygen-18

d)

They all have the same number of neutrons.

57.

What is a positive ion called?

a)

anion

b)

cation

c)

isotope

d)

covalent

58.

What is a negative ion called?

a)

anion

b)

cation

c)

covalent

d)

isotope

59.

How many electrons would a Nitrogen ion gain/lose? If it has 5 valence electrons.

a)

lose 5

b)

gain 5

c)

lose 3

d)

gain 3

60.

What is the ion formed from Sulfur? If it has 6 valence electrons.

a)

S+2

b)

S-2

c)

S+6

d)

S-6

61.

If an atom loses electrons, the charge will be positive.

a)

true

b)

false

62.
Ions are: 
a)
atoms with a positive or negative charge
b)
atoms with no charge
c)
atoms with ONLY a positive charge
d)
atoms with ONLY a negative charge
63.

N₂O₅

(a)  

64.

CO₂

(a)  

65.

PCl₃

(a)  

66.

P₂O₅

(a)  

67.

Covalent bonds form between: ​

a)

two nonmetals

b)

two metals

c)

a metal and a nonmetal

d)

two alkali metals

e)

A metal and a noble gas

68.

LiBr is called

a)

lithium bromine

b)

lithium (I) bromine

c)

lithium bromide

d)

lithuim (I) bromide

69.

Which of these combinations is an ionic compound made of?

a)

Metal and Metal

b)

Nonmetal and Nonmetal

c)

Metal and Nonmetal

d)

Cation and Cation

70.

Name the following ionic compound: BeCl2

a)

beryllium chlorine

b)

beryllium II chloride

c)

beryllium chloride

d)

beryllium dichloride

71.
What is the formula for Hexaboron Monosilicide
a)
B6Si
b)
BSi
c)
BSi6
d)
B6Si6
72.
What is the OFFICIAL name for H2O
a)
Hydrogen Oxide
b)
Oxygen Dinitride
c)
Agua
d)
Dihydrogen Monoxide
73.
What is the formula for Tricarbon Octahydride?
a)
Ca3O
b)
C2H8
c)
C3H8
d)
Ca3H8
74.
Is water an element or a compound?
a)
Element
b)
Compound
75.
Water (H2O) freezing is an example of:
a)
A chemical change
b)
A physical change
76.
A compound consists of two or more elements bound together.
a)
True
b)
False
77.
Is Iron (Fe) an element or a compound?
a)
Element
b)
Compound
78.
A chemical change always results in the formation of a:
a)
explosion
b)
big mess
c)
new substance
d)
new state of matter
79.
What is the formula for Potassium Iodide?
a)
KI
b)
K2I
c)
KI2
d)
K(II)I
80.

The first step in naming an ionic compound is always...

a)

Naming the anion (non-metal)

b)

Changing the ending to -ide

c)

Naming the cation (metal)

d)

Writing the cation charge

81.

A substance that is formed as the result of a chemical reaction is a __________________

a)

Product

b)

Reactant

c)

Starters

d)

Enders

82.

What is the BEST definition of a chemical reaction?

a)

A change in matter that produces one or more NEW substances

b)

When two things combine and EXPLODE.

83.
The Law of Conservation of Mass states
a)
that matter exists in all states and reacts the same
b)
that matter can only be changed into new substances by introducing a catalyst
c)
that matter exists in the same state throughout any chemical change
d)
that matter cannot be created or destroyed and that the mass of the products must equal the mass of the reactants
84.
How many Al atoms are in this compound?         4Al2O3
a)
2
b)
8
c)
6
d)
4
85.

___________________ are the elements or compounds that leave (are formed in) a chemical

reaction.

a)

Polymers

b)

Bonds

c)

Reactants

d)

Products

86.

Look at the chemical equation.


Is it written correctly to show the Law of Conservation of Mass?

a)

Yes

b)

No

87.
The left side of the equation below is called
a)
Products
b)
Reactants
88.
The right side of the equation below is called the
a)
products
b)
reactants
89.
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
a)
Coefficient
b)
reactant
c)
subscript
d)
product 
90.
Is this balanced?
Al + O2 → 2Al2O3
a)
Yes
b)
No
91.
Number of C's in 2Na₂CO₃
a)
1
b)
2
c)
3
d)
5
92.
Which of the following shows the correct way to balance the chemical equation?
Fe + O2 -> Fe2O3
a)
4Fe + 3O2 -> 2Fe2O3
b)
2 Fe + 3O2 -> Fe2O6
c)
4 Fe + O6 -> 2Fe2O3
d)
None of the options are correctly balanced.
93.
Balance this equation,            
Al2O3 --> Al + O2 
a)
Cannot be balanced
b)
2Al2O3 --> 2Al+3O2 
c)
2Al2O3--> 4Al+3O2 
d)
3Al2O3--> 2Al+O2 
94.
If reaction starts with 20g of reactants it should produce... 
a)
a total of 40g of product
b)
a total of 10g of product
c)
a total of 80 g of product
d)
a total of 20g of product
95.

This is anything that has volume and mass

a)

Density

b)

Volume

c)

Mass

d)

Matter

96.

What type of chemical reaction has the following configuration?


Compound --> Substance + Substance


AB --> A + B

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

97.

What type of chemical reaction is Endothermic and needs heat/energy to take place.

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

98.

What type of chemical reaction has the following configuration?


Ionic Compound(aq) + Ionic Compound(aq) --> Compound + Compound


AB(aq) + CD(aq) --> AD + BC

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

99.

Which type of chemical reaction has the following configuration?


Element + Compound --> Element + Compound


A + BC --> B + AC

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

100.

Which type of chemical reaction has the following configuration?


Substance + Substance --> Compound


A + B --> AB

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

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