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Chemistry revision quiz

Total questions: 63

Worksheet time: 21mins

Name
Class
Date
1.

What is the main factor of the particle theory?

a)

All matter is made up of tiny particles.

b)

All matter is made up of large particles.

c)

All matter is made up of liquid particles.

d)

All matter is made up of gas particles.

2.

What happens to particles when heat is added to matter?

a)

Particles move slower.

b)

Particles move faster.

c)

Particles stop moving.

d)

Particles disappear.

3.

What are atoms made up of?

a)

Proton, neutron, electron

b)

Proton, neutron, molecule

c)

Proton, electron, compound

d)

Neutron, electron, mixture

4.

What does the subscript number to the right of the element symbol show?

a)

How many atoms of that element are present in the compound/molecule.

b)

The atomic number of the element.

c)

The mass number of the element.

d)

The charge of the element.

5.

What is the definition of a chemical property?

a)

A property that describes the ability of a substance to undergo a specific chemical change.

b)

A property that describes the physical appearance of a substance.

c)

A property that describes the density of a substance.

d)

A property that describes the hardness of a substance.

6.

Which of the following is an example of a chemical change?

a)

Melting ice

b)

Boiling water

c)

Burning paper

d)

Breaking glass

7.

What evidence can indicate a chemical change?

a)

Change in shape

b)

Change in state

c)

Production of gas, heat, or light

d)

Change in size

8.

What is produced when lead nitrate reacts with potassium iodide?

a)

Lead sulfate and potassium nitrate

b)

Lead iodide and potassium nitrate

c)

Lead oxide and potassium sulfate

d)

Lead chloride and potassium sulfate

9.

Sugar +Oxygen ⟹ Carbon Dioxide + WaterSugar\ +Oxygen\ \Longrightarrow\ Carbon\ Dioxide\ +\ Water

How is a chemical reaction written using word equations?

a)

By using symbols and numbers

b)

By using words to describe the reactants and products

c)

By using only the names of the products

d)

By using only the names of the reactants

10.

Which of the following is a common chemical reaction seen in everyday life?

a)

Melting ice

b)

Boiling water

c)

Cooking toast

d)

Freezing water

11.

Sugar +Oxygen ⟹ Carbon Dioxide + WaterSugar\ +Oxygen\ \Longrightarrow\ Carbon\ Dioxide\ +\ Water

What is a chemical formula equation?

a)

An equation that uses words to describe a reaction

b)

An equation that uses symbols and numbers to give information about elements and atoms

c)

An equation that describes physical changes

d)

An equation that only shows the products of a reaction

12.

Which of the following is NOT an example of a chemical change?

a)

Burning magnesium

b)

Copper sulfate and sodium carbonate reaction

c)

Melting ice

d)

Cooking toast

13.

Sugar +Oxygen ⟹ Carbon Dioxide + WaterSugar\ +Oxygen\ \Longrightarrow\ Carbon\ Dioxide\ +\ Water

What is the purpose of using word equations in chemistry?

a)

To describe physical changes

b)

To describe chemical reactions using words

c)

To describe the color of substances

d)

To describe the shape of substances

14.

Which of the following is a sign of a chemical reaction?

a)

Change in color

b)

Change in shape

c)

Change in size

d)

Change in state

15.

Which of the following is an example of a physical change?

a)

Rusting of iron

b)

Burning of wood

c)

Melting of ice

d)

Cooking an egg

16.

What is the law of conservation of mass?

a)

Mass can be created and destroyed.

b)

Mass is neither created nor destroyed in a chemical reaction.

c)

Mass is always conserved in physical changes only.

d)

Mass can be converted into energy.

17.

Which of the following is an example of a physical change?

a)

Burning coal

b)

Rusting iron

c)

Freezing water

d)

Cooking an egg

18.

What is the chemical formula for water?

a)

H2O

b)

CO2

c)

O2

d)

H2

19.

What is the chemical symbol for sodium?

a)

Na

b)

So

c)

S

d)

Sn

20.

Which of the following is a physical property of matter?

a)

Flammability

b)

Density

c)

Reactivity

d)

Corrosiveness

21.

What is the process of a solid changing directly into a gas called?

a)

Condensation

b)

Evaporation

c)

Sublimation

d)

Deposition

22.

What is the process of a gas changing directly into a solid called?

a)

Condensation

b)

Evaporation

c)

Sublimation

d)

Deposition

23.

Which of the following is an example of a chemical change?

a)

Freezing water

b)

Boiling water

c)

Burning wood

d)

Melting ice

24.

What is the chemical symbol for potassium?

a)

K

b)

P

c)

Pt

d)

Po

25.

Which of the following is a chemical property of a substance?

a)

Boiling point

b)

Color

c)

Reactivity with acid

d)

Density

26.
What do we call a substance consisting of a single atom?
a)
coefficient
b)
element
c)
compound
d)
molecule
27.
What do we call a chemical substance made up of 2 or more different types atoms bonded together?
a)
formula
b)
atom
c)
subscript
d)
compound
28.
All ____________ are made up of two or more atoms bonded together.
a)
atoms
b)
molecules
c)
electrons
d)
elements
29.
When __________ form, the elements lose there individual chemical properties and take on new properties.
a)
compounds
b)
atoms
c)
subscript
d)
formula
30.
The smallest unbreakable unit of a compound is called
a)
subscript
b)
proton
c)
formula
d)
molecule
31.
A recipe for a chemical substance is called a ________ _________.
a)
coefficent
b)
chemical formula
c)
Oxygen
d)
atom
32.
 2H2O
How many Hydrogen atoms are present?
a)
2
b)
4
c)
1
d)
10
33.
2H2O
How many Oxygen atoms are present?
a)
2
b)
4
c)
1
d)
5
34.
2H2O
How many H2O molecules are present?
a)
1
b)
4
c)
2
d)
8
35.
What does this image represent?
a)
Atom
b)
Element
c)
Molecule
d)
Marshmallows
36.
Carbon dioxide (CO2) contains how many atoms of oxygen?
a)
0
b)
1
c)
2
d)
3
37.

A pure substance made up of one type of atom only

a)

atom

b)

element

c)

molecule

d)

compound

38.

True or False: All COMPOUNDS are MOLECULES

a)

True

b)

False

39.

True or False: All MOLECULES are COMPOUNDS

a)

True

b)

False

40.

Look at the image. It can be described as

a)

an element and a molecule

b)

an element and an atom

c)

a compound and a molecule

41.

Which of the diagrams pictures shows an ELEMENT?

a)

I

b)

II

c)

III

d)

IV

e)

None of the above

42.

This picture represents which of the following?

a)

molecules of an element

b)

molecules of an compound

c)

particles of a solution

43.

This picture represents which of the following?

a)

molecules of an element

b)

molecules of a compound

c)

particles of a mixture

44.

What is sugar? (C6H12O6)

a)

compound

b)

element

c)

mixture

d)

atoms

45.

Evidence of Chemical Change (select all that apply)

a)

Change in Colour

b)

Heat Produced

c)

Change of Shape

d)

Light Produced

46.
Properties that describe how a substance looks, feels, state of matter, etc. are?
a)
Chemical properties
b)
Physical properties
47.
What does a chemical change result in?
a)
A phase change in the substance (ex. liquid to solid)
b)
A change in texture of the substance.
c)
A change in the way atoms are bonded to each other.
d)
A change in the way atoms are arranged in space.
48.
Which of the following is an example of a physical change?
a)
Baking a birthday cake
b)
A glass falling and shattering on the floor
c)
Burning a piece of paper
d)
Baking soda and vinegar mixing together
49.
Which type of change is most often easily reversed?
a)
Chemical
b)
Physical
c)
Both
50.
Identify what’s happening in the picture as a chemical or physical change.
a)
Chemical
b)
Physical
c)
Both
51.
Drying wet hair is an example of a __________ change.
a)
Chemical
b)
Physical
c)
Both
52.
A statue damaged by acid rain is a chemical change.
a)
True
b)
False
53.
Does the following represent a chemical or physical change?
a)
Chemical
b)
Physical
c)
Both
54.

Which is an example of chemical property?

a)

color

b)

flammability

c)

shape

d)

size

55.

Which is an example of physical property?

a)

color

b)

flammability

c)

reactivity

d)

toxicity

56.
Dissolving sugar in water is an example of a 
a)
physical change
b)
chemical change
57.

Which of the following is a correct description for solids?

a)

closely arranged and in fixed positions

b)

closely arranged and vibrate in fixed positions

c)

closely arranged and can move around

58.

Which of the following sentences are true about solids?

a)

Solids are rigid, have a fixed shape but not a fixed volume

b)

Solids are not rigid, have a fixed shape and no fixed volume

c)

Solids are rigid, have a fixed shape and a fixed volume

59.
Which of the following statements about the particle of a gas is true?
a)
Gases can be compressed because their particles are smaller than those of liquids or solids.
b)
Gases can be compressed because there is plenty of space between their particles.
c)
Gases can be compressed because they have low boiling points.
d)
Gases can be compressed because their particles are more elastic than those of liquids or solids.
60.
What happens when water evaporates?
a)
Particles of the water vapour lose energy to their surroundings.
b)
Particles of the water vapour are spaced further apart.
c)
The speed of the particles of the water increases.
d)
The temperature of the remaining water rises.
61.

This diagram represents particles in a ______________ state.

a)

Solid

b)

Liquid

c)

Gas

62.

What happens to particle spacing when energy is added to a state?

a)

Particles move farther apart

b)

Particles move closer together

c)

Particles stay the same

63.

The diagrams below show sealed containers with only one

substance, but in different states of matter. Which diagram best represents the molecules of a substance in the gaseous state?

a)

A

b)

B

c)

C

d)

D

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