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Review for Classification of Matter; Pure Substance vs. Mixtures

Total questions: 82

Worksheet time: 45mins

Name
Class
Date
1.

What is the difference between a pure substance and a mixture? Select all that apply.

a)

substances are made of many different things while mixtures are just made of 1

b)

a substance has one type of particle while a mixture has 2 or more types

c)

a mixture is physically combined and can be physically separated while a substance is chemically bonded

d)

a mixture is chemically bonded together while a substance is physically combined

2.

What pure substance is made of 2 or more types of atoms?

a)

compound

b)

element

3.

Identify the following

a)

compound

b)

homogeneous mixture

c)

element

d)

heterogeneous mixture

4.

Identify the following

a)

compound

b)

homogeneous mixture

c)

element

d)

heterogeneous mixture

5.

Identify the following

a)

compound

b)

homogeneous mixture

c)

element

d)

heterogeneous mixture

6.
Italian Salad Dressing is a . . .
a)
heterogeneous mixture
b)
homogeneous mixture
c)
Pure Substance
d)
Compound
7.

Are made from a combination of 2 or more different elements...

a)

Molecules

b)

Compounds

8.
A combination that can be separated by physical processes is a .....
a)
Pure Substance
b)
Glucose
c)
Element
d)
Mixture
9.
A mixture that is NOT evenly distributed is called ....
a)
Compounded
b)
Homogenous
c)
Heterogenous
d)
Salty
10.
Mixture, such as mixed nuts or dry soup mix, in which different materials are unevenly distributed and are easily identified.
a)
suspension
b)
homogeneous mixture
c)
heterogeneous mixture
d)
colloid
11.
Substance with atoms that are all alike.
a)
element
b)
compound
c)
homogeneous mixture
d)
heterogeneous mixture
12.
This picture represents: 
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
13.
This picture represents: 
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
14.
This picture represents: 
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
15.
What type of mixture is this?
a)
homogenous mixture
b)
chemical
c)
heterogeneous mixture 
d)
solid mix
16.
All matter is made up of .....
a)
Compounds
b)
Atoms
c)
Molecules
d)
Sunshine
17.
Which of the following would you use to separate sand from iron?
a)
a bar magnet
b)
paper
c)
hot plate
18.
Which of the following is an element?
a)
Sugar
b)
Salt
c)
Water
d)
Oxygen
19.
A mixture that is so evenly mixed you can't see the parts.  Such as Kool-Aid
a)
Homogeneous Mixture
b)
Heterogeneous Mixture
c)
Pure Substance
20.
A gold coin is an example of a.....
a)
pure element
b)
pure compound
c)
heterogeneous mixture
d)
homogeneous mixture
21.

Which type of matter is made of only 1 type of atom and can be found on the periodic table?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

22.

Which type of matter has two or more substances that can be separated by physical means. Each of the substances can be seen.

a)

Homogeneous Mixture

b)

Diatomic Element

c)

Compound

d)

Heterogeneous Mixture

23.

Which type of matter is two or more substances that can be separated by physical means? It has a uniform appearance.

a)

Heterogeneous Mixture

b)

Compound

c)

Pure Substance

d)

Homogeneous Mixture

24.

Which type of matter is made up of 2 or more types of atom chemically combined. They cannot be separated by physical means.

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

25.

Which type of matter is made of only 1 type of atom or molecule. They can be either atoms or compounds.

a)

Elements

b)

Compounds

c)

Pure Substance

d)

Mixture

26.

How would you classify the matter pictured?

a)

Compound

b)

Element

c)

Mixture of Elements and Compounds

d)

Mixture of Compounds

27.

How would you classify the matter pictured?

a)

Element

b)

Diatomic Element

c)

Compound

d)

Mixture of Elements

28.

How would you classify the matter pictured?

a)

Element

b)

Compound

c)

Mixture of Compounds

d)

Mixture of Elements

29.

How would you classify the matter pictured?

a)

Mixture of Compounds

b)

Mixture of Elements

c)

Mixture of Compounds and Elements

d)

Element

30.

How would you classify the matter pictured?

a)

Diatomic Element

b)

Compound

c)

Mixture of Compounds

d)

Mixture of Compounds and Elements

31.

How would you classify the matter pictured?

a)

Mixture of Compounds

b)

Mixture of Elements

c)

Mixture of Compounds and Elements

d)

Compound

32.

How would you classify a chocolate chip granola bar?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

33.

How would you classify Chalk (CaCO3)

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

34.

How would you classify coffee?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

35.

How would you classify air, which includes gases like oxygen, nitrogen, water vapor, etc.?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

36.

How would you classify helium (He)

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

37.

How would you classify Carbon Dioxide (CO2)

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

38.

What is the definition of matter?

a)

Anything that has mass and volume

b)

Anything that has mass but not volume

c)

Anything that has volume but not mass

d)

I have no idea

39.

Which of the following is an example of matter?

a)

Air

b)

Flowers

c)

Baseballs

d)

All of the above

40.

What are the two categories of matter?

a)

Homogeneous and Heterogeneous

b)

Pure substance and Mixture

c)

Mixtures and elements

d)

Good question

41.

What is the definition of a pure substance?

a)

Element

b)

Element or compound that can be broken down

c)

Broken compound

d)

Element or compound that cannot be broken down

42.

How many elements are on Earth?

a)

100

b)

90

c)

25

d)

70

43.

What is used to identify an element?

a)

Symbol

b)

Number

c)

Marker

44.

What is a compound?

a)

letters used to identify elements

b)

one element

c)

Two or more elements chemically combined

d)

tiny particles of an element

45.

What is a mixture?

a)

Two or more elements chemically combined

b)

Two or more substances together but can be easily separated

c)

one substance

d)

one element

46.

What do you think a homogeneous mixture is?

a)

Particles spread out evenly (look the same everywhere)

b)

Particles unevenly spread out

47.
all matter is made of what 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
48.
Matter is 
a)
everything that has density
b)
everything made of atoms 
c)
elements 
d)
anything that has mass and takes up space 
49.
Molecules are 
a)
2 atoms bound together 
b)
2 elements bound together 
c)
2 or more atoms mixed together
d)
2 or more atoms bound together 
50.
An element is made of 
a)
Many types of atoms 
b)
the Periodic Table
c)
One type of Atom 
d)
Molecules 
51.
which one only has one type of atom In it.
a)
Element
b)
compound
52.
True or false: Elements are smaller than atoms?
a)
True
b)
False
53.
What is the picture displayed?
a)
atom
b)
element
c)
molecule/compound
d)
cells
54.

The most pure substances that can be found, made of only one type of atom

a)

elements

b)

atoms

c)

molecules

d)

compounds

55.

Which of the diagrams pictures shows an ELEMENT?

a)

I

b)

II

c)

III

d)

IV

e)

None of the above

56.

Two or more atoms OF DIFFERENT ELEMENTS bonded together

a)

atom

b)

element

c)

molecule

d)

compound

57.

True or False: All COMPOUNDS are MOLECULES

a)

True

b)

False

58.

True or False: All MOLECULES are COMPOUNDS

a)

True

b)

False

59.

This picture represents which of the following?

a)

molecules of an element

b)

molecules of an compound

c)

particles of a solution

60.

How would O2 be qualified. Check all answers that apply.

a)

Atom

b)

Molecule

c)

Compound

61.
A pure substance...
a)
is an element or a compound
b)
is an element or a mixture
c)
is a compound or a mixture
d)
is a mixture
62.

1 A substance made up of two or more chemically combined elements is —

a)

an element

b)

mixture

c)

compound

d)

solution

63.
NaHCO3 is an example of —
a)
an abbreviation
b)
a compound
c)
a mixture
d)
an element
64.

Table salt, or sodium chloride has the chemical formula NaCl. How is sodium chloride classified?

a)

as an element

b)

. as a compound

c)

as a mixture

d)

as a liquid

65.

Brass is a metal that is bright red and gold. It is formed by combining, not chemically, two elements, zinc and copper. Based on the information, how would brass be classified?

a)

an element

b)

compound

c)

mixture

d)

suspension

66.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
67.

This picture represents which of the following?

a)

A single element

b)

Mixture of molecules

c)

mixture of atoms

d)

mixture of compounds

68.

What does this illustrate

a)

Elements

b)

Compunds

c)

Mixture of Elements and Compunds

d)

Mixture of Compounds

69.
Which of the following is an element?
a)
Sugar
b)
Salt
c)
Water
d)
Oxygen
70.
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
71.

Which compound is best represented by this particle diagram?

a)

NH3

b)

H2O

c)

CH4

d)

HCl

72.

Which compound is best represented by this particle diagram?

a)

C2H6

b)

C6H12O6

c)

CO2

d)

NaCl

73.

How many types of atoms are in K₂SO₄

a)

7

b)

3

c)

2

d)

4

74.

What property did Mendeleev use to arrange the elements?

a)

alphabetical

b)

density

c)

melting point

d)

atomic weight

75.

A significant accomplishment of Mendeleev's organization method is that he successfully used it to _?_.

a)

classify the noble gases

b)

measure the atomic masses of elements

c)

discover new elements

d)

predict the properties of undiscovered elements

76.

What did Dmitri invent?

a)

Children

b)

Periodic Table

c)

Russian currency

d)

Calculator

77.

Which scientist was the first person responsible for proposing the idea of atoms?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

78.
1. Which key term describes the random movement of particles?
a)
a) Diffusion
b)
b) Osmosis
c)
c) Brownian Motion
d)
d) Absolute zero �
79.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
80.
What is happening when my ice cream changes from a solid to a liquid?
a)
freezing
b)
melting
c)
burning
d)
evaporation
81.
The slower the particles in a substance move,
a)
the colder it is.
b)
the warmer it is.
c)
the more energy it has.
d)
the less energy it has.
82.
The speed of the molecules determines the _____.
a)
volume
b)
density
c)
pressure
d)
temperature

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