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Unit 1 Review General Chemistry

Total questions: 116

Worksheet time: 1hrs 15mins

Name
Class
Date
1.

Properties that change based on the amount of the substance is

a)

Extrinsic Properties

b)

Intrinsic Properties

c)

Chemical Properties

d)

Real Properties

2.

Properties that do not change based on the amount of the substance is

a)

Extrinsic Properties

b)

Intrinsic Properties

c)

Associative Properties

d)

Real Properties

3.

Which of the following is not an example of matter?

a)

sunlight

b)

desk

c)

water

d)

pencil

4.

Conductivity is a

a)

Intrinsic property

b)

Chemical property

c)

Extrinsic property

d)

Fake property

5.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
6.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup 
d)
plastic bottle
7.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
8.

This is an example of an intrinsic physical property of matter.

a)

density

b)

mass

c)

weight

d)

volume

9.

Identify the extrinsic property listed below.

a)

length

b)

taste

c)

density

d)

boiling point

10.
What is a solid?
a)
it keeps its shape and size
b)
it takes the shape of the container that holds it
c)
it has no shape, and spreads to fill the space they are in
d)
it changes with a temperature change
11.
Gas particles are...
a)
tightly packed.
b)
loosely bonded and flowing.
c)
free to fly in all directions.
d)
so hot that the electrons are removed from the nucleus.
12.

Examine the graphic provided. Which container identifies a liquid?

a)

Container A

b)

Container B

c)

Container C

13.

Volume

a)

Intrinsic

b)

Extrinsic

14.

Mass

a)

Intrinsic

b)

Extrinsic

15.

Freezing Point

a)

Intrinsic

b)

Extrinsic

16.

Boiling Point

a)

Intrinsic

b)

Extrinsic

17.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
18.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
19.
An atoms overall charge is 
a)
positive 
b)
depends on its mood 
c)
neutral 
d)
negative 
20.

The smallest particle of any particular type of element

a)

Compound

b)

Atom

c)

Chemical

d)

Element

21.
all matter is made of what 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
22.
If an atom has 3 electrons, how many protons does it have?
a)
1
b)
2
c)
4
d)
3
23.
The subatomic particle with a negative charge is the
a)
electron
b)
proton
c)
neutron
d)
nucleus 
24.
If the number of protons equal the number of _____, the atom will have no charge
a)
protons
b)
neutrons
c)
electrons
d)
nucleus
25.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
26.
What is the mass number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
27.
An atom with an unequal number of protons and electrons is said to have (a) ___.
a)
no charge
b)
balance
c)
charge
d)
unbalance
28.
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
29.
Two atoms of the same element but with different mass numbers are called________
a)
electrons
b)
isotopes
c)
variables
d)
electron cloud
30.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
31.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
32.
What does the nucleus consist of?
a)
Protons + Electrons
b)
Neutrons + Electrons
c)
Atoms
d)
Protons + Neutrons
33.
an atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
34.
An atom's mass number equals the number of...
a)
protons plus the number of electrons
b)
protons plus the number of neutrons
c)
protons
d)
neutrons
35.
Which statement about the atomic nucleus is correct?
a)
The nucleus is made of protons and neutrons and has a negative charge
b)
The nucleus is made of protons and neutrons and has a positive charge
c)
The nucleus is made of electrons and has a positive charge
d)
The nucleus is made of electrons and has a negative charge
36.
Most of the mass in an atom is concentrated in the...
a)
electrons
b)
nucleus
c)
protons
d)
empty space
37.
Electrons are___________
a)
Extremely small even in comparison to protons.
b)
part of the nuclues.
c)
Super Positive, like cheerleaders!
d)
very large
38.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
39.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
40.

The atomic mass of an element is the ___.

a)

average of the mass number and the atomic number for the element

b)

weighted average of the masses of the isotopes of the element

c)

total mass of the isotopes of the element

d)

total number of subatomic particles in the nucleus

41.
A pure substance that cannot be broken down into other substances by chemical or physical means. 
a)
compound          
b)
atom
c)
mixture 
d)
element
42.

Which of these is an element?

a)

Salt (NaCl)

b)

Water (H20)

c)

Oxygen (O)

d)

Carbon Dioxide (CO2)

43.

Which of these is a compound?

a)

Aluminium (Al)

b)

Carbon Dioxide (CO2)

c)

Nitrogen (N)

d)

Sand

44.

Which of these is a mixture?

a)

Laundry Detergent

b)

Salt (NaCl)

c)

Oxygen (O)

d)

Fluorine (Fl)

45.

Air is:

a)

An element

b)

A compound

c)

A mixture

d)

None of these

46.
What is an example of a mixture?
a)
iron
b)
ice
c)
soil
d)
gold
47.
A mixture that is uniform and well mixed is _____.
a)
homogeneous
b)
hetergeneous
c)
pure substance
d)
compoud
48.
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
49.
The picture shown here is what type of mixture?
a)
homogeneous
b)
hetergeneous
c)
pure substance
d)
element
50.
Something that dissolves very easily in water 
a)
soluble
b)
solid
c)
saturated
d)
solvent
51.

If a material's composition varies from region to region, it can be classified as _______________

a)

homogeneous

b)

heterogeneous

52.

What is often called the universal solvent?

a)

sodium chloride

b)

oxygen

c)

sodium

d)

water

53.
Which substance is the MOST dense?  ** Use the key
a)
A
b)
B
c)
C
d)
Cannot be determined by the data provided.
54.
If this substance takes up 6 ml of space, what is its mass?
a)
 6 ml
b)
6 grams
c)
0 grams
d)
4 grams 
55.

Material of density of 762 kg/m3 occupies a container volume of 99 cm3. What is its mass?

Hint: density = mass/volume

a)

75438 kg

b)

7.70 kg

c)

0.13 kg

d)

6858 kg

56.

If 96.5 grams of gold has a volume of 5 cm3 , what is the density of gold?

Hint: density = mass/volume

a)

482.5 g/cm3

b)

19.3 g/cm3

c)

0.05 g/cm3

d)

101.5 g/cm3

57.

A piece of tin has a mass of 16.52 g and a volume of 2.26 cm3. What is the density of tin?

Hint: density = mass/volume

a)

7.3 g/cm3

b)

37.3 g/cm3

c)

7.3 cm3/g

d)

37.3 cm3/g

58.

When sugar dissolves in water a ______________ change occurs.

a)

Physical change

b)

Chemical Change

59.
Hydrochloric acid reacts with potassium hydroxide to produce a salt, water,and heat.
a)
Chemical Change
b)
Physical Change
60.

Which of the following is evidence of a physical change?

a)

New substance

b)

Shape Change

c)

Light produced

d)

Gas released.

61.

A teacher is demonstrating physical and chemical changes to her class. Which action should they use to demonstrate a chemical change?

a)

Cutting a piece of paper with scissors.

b)

Folding a piece of paper into an airplane.

c)

Ripping a piece of paper with their hands.

d)

Burning a piece of paper with a match.

62.

Properties that describe how a substance looks, feels, or its state of matter, etc. are __________________.

a)

Chemical properties

b)

Physical properties

63.
Chewing food to break it down into smaller particles represents a _________ change, but the changing of starch into sugars by enzymes in the digestive system represents a ___________change. 
a)
Chemical then Physical 
b)
Physical then Chemical
c)
Both Physical
d)
Both Chemical
64.
Properties that describe how a substance reacts with other substances are called?
a)
Chemical properties
b)
Physical properties
65.

Why does the image best represent an example of a physical change?

a)

The pencil can no longer be used.

b)

The pencil is a different size.

c)

The materials making up the pencil did not change.

d)

The materials making up the pencil are different.

66.

What is the definition of chemical change?

a)

any change that results in the formation of one (or more) new chemical substance(s).

b)

changing of only the appearance of the object

c)

matter cannot be created or destroyed, only change form

d)

changes affecting the form of a chemical substance, but not its chemical composition.

67.
TRUE OR FALSE: You can look at matter and observe the chemical properties.
a)
TRUE
b)
FALSE
68.
Which of the following is NOT a clue that a chemical reaction has taken place?
a)
Changing size
b)
Changing color
c)
A gas being formed
d)
Formation of a precipitate
69.

Think this through: Can the same substance undergo both a physical and a chemical change at the same time.

a)

Yes

b)

No

70.

Reactivity (bubbling, fizzing) is a --- property.

a)

Chemical

b)

Physical

71.

Ductility, the ability to be stretched into thin wires, is a --- property.

a)

Chemical

b)

Physical

72.

Combustion or exploding, is a --- property.

a)

Chemical

b)

Physical

73.

Bubbles produced as in the yeast and peroxide demonstration is an example of a --- property.

a)

Chemical

b)

Physical

74.
Which is NOT a physical property?
a)
odor
b)
reacts with acid
c)
ability to conduct electric current
d)
hardness
75.
Should experiments be repeated over and over to see if the results are the same each time?
a)
yes
b)
no
76.
A list of the steps anyone could follow to conduct an experiment. 
a)
obervations
b)
question/problem
c)
materials
d)
procedures
77.

Mrs. Mertz compares three different solutions based on the way they look to help her identify an unknown solution. What data does she need to include in her results?

a)

chemical reactivity

b)

color

c)

mass

d)

flammability

78.

A student hands you the following procedure to follow, "1. Record the mass of the beaker by placing the empty beaker on the scale. 2. Keeping the beaker on the scale, add 2 g of salt. 3. Remove the beaker with salt from the scale and add water."


What important information did the student forget in their procedure?

a)

How much water to include

b)

Telling me how to turn on the scale

c)

Telling me to tare out the scale

d)

Nothing, the procedures are great as is

79.

You are writing procedures for an experiment to determine density of some solutions. Which of the following procedures do you need to include to accomplish this task?

a)

Record the mass of all glassware

b)

Record the volume of each solution

c)

Record the color of each solution

d)

Dissolve solids in tap water

80.

When mixing solutions why is it best to use distilled water instead of tap water

a)

distilled water is more sciencey

b)

distilled water is more clear so you can see color of solid better

c)

distilled water has minerals in it that help solids dissolve

d)

distilled water does not have minerals in it that could throw off your results

81.

What is the suitable technique for a mixture of iron filings and sand?

a)

filtering

b)

magnetic separation

c)

decanting

82.

Sulphur is not soluble in water. If, accidentally, some sulphur drops into a glass of water. Which separation technique would you use to separate it from the water?

a)

by decanting

b)

by filtering

c)

by crystallization

d)

by sieving

83.

Which of the following statements tells us that a sample of liquid is pure water?

a)

It is colourless.

b)

It leaves no residue when filtered.

c)

It boils at 100oC.

d)

It is odourless.

84.

To separate a mixture of salt and water what separation method is used?

a)

Filtration

b)

Distillation

c)

Chromatography

d)

Evaporation to dryness

85.

Water and alcohol are easily separated by distillation (boiling and collecting the vapor) because of their

a)

different densities

b)

different boiling points

c)

different colours

d)

different melting points

86.

Which property indicates that a solid is pure?

a)

It burns completely in oxygen, leaving no residue.

b)

It has a fixed melting point.

c)

It has a fixed volume.

d)

It is soluble in water.

87.

Which is the most suitable laboratory apparatus used to measure 78ml of distilled water?

a)

beaker

b)

graduated cylinder

c)

gas syringe

d)

pipette

88.

What is the unknown?

a)

salt solution

b)

baking soda solution

c)

sugar solution

d)

none of the above

89.

What properties help you determine the unknown substance?

a)

color

b)

deinsity

c)

pH

d)

water soluble

e)

reacts with water

90.

What properties are physical properties (completely or partially)

a)

color

b)

density

c)

pH

d)

water soluble

e)

reacts with water

91.

What properties are chemical properties (completely or partially)

a)

color

b)

density

c)

pH

d)

water soluble

e)

reacts with water

92.

Why is solubility considered to be both a chemical and physical property

a)

The reaction is only sometimes reversible, depending on if a liquid or a solid was dissolved

b)

A new compound isn't formed, but in salts the water gets between the ions to break them apart so they aren't in compound anymore

c)

A new compound is formed, but the physical appearance of the solution does not change from regular water

d)

False, solubility is always a physical property.

93.

Matter that has a definite shape and volume.

a)

solid

b)

gas

c)

liquid

d)

plasma

94.

Matter with no definite shape or volume.

a)

solid

b)

gas

c)

liquid

d)

plasma

95.

Matter that has definite volume and no definite shape.

a)

solid

b)

gas

c)

liquid

d)

plasma

96.

A change from one phase of matter to another phase of matter is what kind of change?

a)

physical

b)

property

c)

chemical

d)

none of the above

97.

Matter that fills the container is in what state of matter?

a)

solid

b)

gas

c)

liquid

d)

plasma

98.

Matter in which the particles are free to move in all directions.

a)

solid

b)

gas

c)

liquid

d)

plasma

99.

Matter in which the particles slide past each other is?

a)

solid

b)

gas

c)

liquid

d)

plasma

100.

Most matter does this when heated.

a)

expands

b)

solidifies

c)

contracts

d)

does not change

101.

When the temperature of a substance is lowered, its particles

a)

vibrate more quickly

b)

stop vibrating completely

c)

escape the attractive forces of the other particles

d)

vibrate more slowly

102.

Basic state of matter with the least amount of energy.

a)

solid

b)

liquid

c)

gas

103.

Basic state of matter with an intermediate (medium) amount of energy.

a)

solid

b)

liquid

c)

gas

104.

Basic state of matter with the greatest amount of energy.

a)

solid

b)

liquid

c)

gas

105.
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
106.
This picture represents which of the following?
a)
Element
b)
Compound
c)
Mixture
107.
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
108.

Which diagram depicts the arrangement of particles in a solid?

a)
b)
c)
109.

The particles are far apart and move quickly in all directions. What state of matter am I?I

a)

solid

b)

liquid

c)

gas

d)

none

110.

The particles are close together and vibrate in place with little movement. What state of matter am I?I

a)

solid

b)

liquid

c)

gas

d)

none

111.

The particles slide past one another and move around more than the particles of a solid. What state of matter am I?I

a)

solid

b)

liquid

c)

gas

d)

none

112.

Observable event/phenomenon/property. Can be used as evidence

a)

Fact

b)

Hypothesis

c)

Theory

d)

Law

113.

An educated guess, relatively easy to disprove

a)

Fact

b)

Hypothesis

c)

Theory

d)

Law

114.

Based on a bunch of related and supported hypotheses. Explains how a related set of events/phenonmena occur or behave. Explains how something in the universe works. Cannot predict.

a)

Fact

b)

Hypothesis

c)

Theory

d)

Law

115.

Based on a bunch of related and supported hypotheses. Predicts how a related set of events/phenonmena occur or behave. Often expressed as equations. Cannot explain.

a)

Fact

b)

Hypothesis

c)

Theory

d)

Law

116.

Equally strong and robust. Can be adjusted and changed with new information, but the longer they are around the harder they are to fully disprove.

a)

Fact

b)

Hypothesis

c)

Theory

d)

Law