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Elements, Compounds, & Mixtures Practice

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.
a)

Element

b)

Compound

c)

Mixture of Elements

d)

Mixture of Compounds

e)

Mixture of Elements and Compounds

2.
a)

Element

b)

Compound

c)

Mixture of Elements

d)

Mixture of Compounds

e)

Mixture of Elements and Compounds

3.
a)

Element

b)

Compound

c)

Mixture of Elements

d)

Mixture of Compounds

e)

Mixture of Elements and Compounds

4.
a)

Element

b)

Compound

c)

Mixture of Elements

d)

Mixture of Compounds

e)

Mixture of Elements and Compounds

5.

What is the periodic table?

a)

A table full of elements

b)

An element full of tables

c)

A table with periods

d)

A period with tables

6.

Which TWO answers are examples of elements?

a)

Water

b)

Hydrogen

c)

Trees

d)

Helium

7.

A substance that is made of two or more different elements that are chemically combined:

a)

A molecule

b)

A compound

c)

A heterogeneous mixture

d)

A homogeneous mixture

8.

TRUE OR FALSE: Substances in a mixture keep their original properties.

a)

True

b)

False

9.

TRUE OR FALSE: Elements in a compound keep their original properties.

a)

True

b)

False

10.

The smallest unit of an element that keeps the same properties of that element is a(n):

a)

Electron

b)

Atom

c)

Molecule

d)

Compound

11.

Water (H2O) is an example of a(n):

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

12.

Glucose (C6H12O6) is an example of a(n):

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

13.

Carbon (C) is an example of a(n):

a)

Element

b)

Compound

c)

Heterogeneous Mixture

d)

Homogeneous Mixture

14.

Mud and rocks is an example of a(n):

a)

Element

b)

Compound

c)

Heterogeneous Mixture

d)

Homogeneous Mixture

15.

Air is an example of a(n):

a)

Element

b)

Compound

c)

Mixture

d)

Solution

16.

Gold, silver, zinc, and copper are

a)

elements

b)

mixtures

c)

solutions

d)

compounds

17.

Soil and sand are

a)

mixtures

b)

solutions

c)

elements

d)

compounds

18.

Oil in water is a

a)

heterogeneous mixture

b)

element

c)

compound

d)

solution

19.

A solution looks the same throughout and is known as which type of mixture?

a)

Homologous

b)

Heterogenous

c)

Homogenous

d)

Elemental

20.

A 14k gold ring is an example of a mixture.

a)

True

b)

False

21.

A pure substance which is formed when 2 or more elements are chemically combined is known as which of the following?

a)

Compound

b)

Solution

c)

Mixture

d)

Homolgounous

22.

Which of the following are true for a compound? (Select all that apply)

a)

The elements are chemically bonded

b)

The elements have their original properties

c)

New unique properties are created

d)

Easily separated

e)

Physical Change

23.

Compounds are easily separated back to their original parts.

a)

True

b)

False

24.

You can separate a mixture of iron and sand by using which of the following.

a)

Distillation

b)

Evaporation

c)

Magnet

d)

Filtration

e)

None of the following

25.

Two or more elements or compounds which are not chemically combined is known as which of the following?

a)

Ionic

b)

Metallic

c)

Mixture

d)

Cobonds

26.

Check all the examples of compounds:

a)

O2

b)

NaCl

c)

KBr

d)

H2

e)

CaCl2

27.

Check all the examples of elements:

a)

hydrogen (H2)

b)

sulfur (S)

c)

water (H2O)

d)

carbon monoxide (CO)

e)

nitrogen (N2)

28.

What are the 2 types of pure substances? Check all that apply:

a)

elements

b)

homogeneous mixtures

c)

heterogeneous mixtures

d)

compounds

29.

Solutions are what type of mixture?

a)

homogeneous

b)

heterogeneous

30.

Check all the HOMOGENEOUS mixtures:

a)

trail mix

b)

creamy peanut butter

c)

Gatorade

d)

sweet tea

e)

pizza

31.

Check all the HETEROGENEOUS mixtures:

a)

soft drinks (unopened)

b)

snow globes

c)

Lucky Charms cereal

d)

salad

e)

hand sanitizer

32.

Which one of these is NOT a pure substance?

a)

Elements

b)

Mixtures

c)

Compounds

33.

Pure water is a ___________.

a)

element

b)

mixture

c)

compound

34.

What type of mixture is a colloid?

a)

homogeneous mixtures 

b)

heterogeneous mixtures 

c)

mixed mixtures 

35.
These are mixtures that are not the same throughout. 
a)
homogeneous mixtures 
b)
heterogeneous mixtures 
c)
solutions 
d)
water 
36.

A molecule can be made of the same kind of elements. 

a)

true

b)

false 

37.

A compound is made of ________ elements. 

a)
big 
b)
similar 
c)
different 
38.
Milk is a ________
a)
compound 
b)
mixture 
c)
element 
39.

What type of mixture is a suspension?

a)

homogeneous mixtures 

b)

heterogeneous mixtures 

c)

mixed mixtures 

40.

In what form is most matter found?

a)

elements

b)

compounds

c)

mixtures

41.

A substance that dissolves other materials is a(n) _____

a)
sands
b)
solvent
c)
alloy
d)
negative particles
42.
The substance being dissolved in a solution.
a)
sands
b)
solute
c)
solvent
d)
alloy
43.

How many Potassium atoms are in the formula KC2H3O2?

a)

0

b)

1

c)

2

d)

3

44.

How many Hydrogen atoms are in the formula KC2H3O2?

a)

0

b)

1

c)

2

d)

3

45.

The compound Nitric Acid has a chemical formula of HNO3. Which statement below correctly describes the make-up of a molecule of Nitric Acid?

a)

3 atoms of hydrogen, 3 atoms of nitrogen, and 3 atoms of oxygen

b)

1 atom of hydrogen, 3 atoms of nitrogen, and 3 atoms of oxygen

c)

1 atom of hydrogen, 1 atom of nitrogen, and 1 atom of oxygen

d)

1 atom of hydrogen, 1 atom of nitrogen, and 3 atoms of oxygen

46.

Water, a stable liquid, is formed when two flammable gases, hydrogen and oxygen, combine chemically. What has happened?

a)

An atom has been created.

b)

A compound has been created.

c)

A mixture has been created.

d)

An element has been created.

47.

Granite forms when magma (lava) cools slowly, deep underground, into large crystals made of the minerals quartz, feldspar, and mica. How would granite be classified?

a)

compound

b)

heterogeneous mixture

c)

homogeneous mixture

d)

solution

48.

Each ball shown in the diagram represents a type of element. Balls of the same shade and size represent the same element. Which diagram shows a mixture?

a)

1

b)

2

c)

3

d)

4

49.

Which substance is made up of more than one element?

a)

helium

b)

aluminum

c)

silver

d)

steel

50.

If a spoonful of salt is dissolved in a glass of water, what is the salt called?

a)
A. solute
b)
B. solution
c)
C. solvent
d)
D. element

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