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Chapter 7 - Foundations of Chemistry

Total questions: 48

Worksheet time: 1hrs 16mins

Name
Class
Date
1.

A small particle that is a building block of matter.

a)

atom

b)

element

c)

electron

2.

A substance that consists of just one type of atom.

a)

element

b)

matter

c)

compound

3.

The number of protons in an atom of an element is the element's

a)

atomic mass

b)

atomic number

c)

element symbol

d)

chemical formula

4.

__________ occurs when a gas changes directly to a solid.

a)

Condensation

b)

Conservation

c)

Deposition

d)

Sublimation

5.

The change in state from a solid to a liquid is called __________.

a)

condensation

b)

dissolving

c)

melting

d)

sublimation

6.

_________ occurs when a solid changes directly to a gas.

a)

Sublimation

b)

Conservation

c)

Deposition

d)

Melting

7.

If 4 g of salt dissolved in 200 g of water, what would be the final mass of this mixture?

a)

50 g

b)

196 g

c)

204 g

d)

800 g

8.

The parts of a ________ can often be separated by physical means.

a)

mixture

b)

mass

c)

solubility

d)

liquid

9.

A _______ property of matter can be observed without changing the identity of the matter.

a)

gas

b)

physical

c)

solid

d)

weight

10.

________ is the amount of matter in an object.

a)

Mixture

b)

Compound

c)

Mass

d)

Chemical

11.

The particles of a ________ move very quickly and spread out to their containers.

a)

gas

b)

mass

c)

solid

d)

liquid

12.
What is matter?
a)
anything that has mass and takes up space
b)
a substance that consists of one type of atom
c)
a small particle that is a building block 
d)
the amount of mass per unit volume
13.
Which of the following is NOT made of matter?
a)
you
b)
your phone
c)
light
d)
backpack
14.
The ________________ is best described as particles are neither created nor destroyed during a physical or chemical change.
a)
Law of Conservation of Mass
b)
Chemical Reaction
c)
Chemical Equation
d)
Change in Thermal Energy
15.
___________ is best described as the amount of a substance in a certain volume.
a)
solubility
b)
density
c)
concentration
d)
state of matter
16.
Which of the following is an example of a balanced equation?
a)
Na + 2Cl -> NaCl
b)
2Fe + S -> Fe2S
c)
CO2 + H2O -> CH4 + 2O2
d)
H2 + O2 -> H2O
17.
What particles of an atom are found in the nucleus?
a)
proton and electron
b)
electron and neutron
c)
proton and neutron 
d)
protons only
18.

Chemical equations are used to describe

a)

changes in state

b)

Chemical changes

c)

chemical properties

19.

Color change, odor change, and bubbles are signs that a ________ might have occurred.

a)

energy change

b)

physical change

c)

chemical change

20.

Magnetism is a physical property that could be used to separate a mixture of

a)

sugar and salt

b)

salt and water

c)

iron filings and sand

21.

This occurs when a solute mixes evenly in a solvent.

a)

melting

b)

dissolving

c)

boiling

d)

freezing

22.

This physical property occurs when thermal energy is removed from a liquid.

a)

melting

b)

dissolving

c)

boiling

d)

freezing

23.

Matter in which individual substances are not evenly mixed.

a)

element

b)

compound

c)

homogeneous mixture

d)

heterogeneous mixture

24.

Element in which substances are evenly mixed but not chemically bonded.

a)

element

b)

compound

c)

homogeneous mixture

d)

heterogeneous mixture

25.

Characteristics of matter that can be observed without changing the identity of the matter.

a)

Chemical properties

b)

chemical changes

c)

physical properties

d)

physical changes

26.

What are characteristics of matter that can be observed only as it changes to a different kind of matter?

a)

physical properties

b)

physical changes

c)

chemical properties

d)

chemical changes

27.

When atoms rearrange and bond into new substances, this process is called a what?

a)

physical change

b)

chemical change

c)

reaction

d)

mixture

28.

The amount of substance in a certain volume.

a)

pressure

b)

surface area

c)

concentration

d)

temperature

29.

Two or more elements combined.

a)

element

b)

matter

c)

substance

d)

compound

30.

Composition is definite.

a)

element

b)

matter

c)

substance

d)

compound

31.

Choose all of the physical properties.

a)

measuring a sample in centimeters

b)

the burning of wood

c)

cookies baking in the oven

d)

calculating the density of a rock

32.
The substances listed on the right side of a chemical equation are the
a)
Yields
b)
Reactants
c)
Products
d)
Precipitates
33.
The substances listed on the left side of a chemical equation are the
a)
Products
b)
Coefficients
c)
Precipitates
d)
Reactants
34.

Which of the following is a homogeneous mixture?

a)

jello

b)

granite

c)

dirt

d)

salsa

35.

Which type of mixture is also called a solution?

a)

Homogeneous

b)

Heterogeneous

36.

The ability of an avocado to change color when exposed to air is a ______.

a)

physical property

b)

chemical property

c)

physical change

d)

chemical change

37.

Occurs when thermal energy is added to a solid.

a)

freezing

b)

melting

c)

boiling

d)

condensation

38.

Cutting a watermelon is an example of a....

a)

physical property

b)

chemical property

39.

Measuring mass is an example of a....

a)

physical property

b)

chemical property

40.

Choose all the ways you can speed up a reaction.

a)

temperature

b)

pressure

c)

concentration

d)

surface area

41.

A subatomic particle with a positive charge is called --

a)

a proton

b)

a neutron

c)

an electron

d)

a nucleus

42.

A chemical formula represents the different

a)

substances of a mixture

b)

parts that make up an atom

c)

properties of an element

d)

elements that make up a compound

43.

How many atoms can fit across the width of a human hair?

a)

1,000,000

b)

100,000

c)

100

d)

1,000

44.

Ecto

a)

internal

b)

origin

c)

above

d)

outer

45.

Gen

a)

stomach

b)

origin

c)

above

d)

internal

46.

Gastro

a)

internal

b)

external

c)

stomach

d)

above

47.

Endo

a)

internal

b)

outer

c)

beginning

d)

above

48.

Epi

a)

origin

b)

stomach

c)

above

d)

internal

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