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Unit 9 Test Review

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.
What kind of properties can only be observed when a substance changes into a different substance?
a)
physical properties
b)
chemical properties
2.
Example for chemical property
a)
malleability
b)
texture
c)
combustion
d)
sour taste
3.
Example of a physical property
a)
reactivity
b)
 color
c)
combustion
d)
ability to burn
4.
Example of physical property
a)
electromotive force
b)
boiling point
c)
combustion
d)
reactivity with water
5.

Boiling point is a

a)

Physical property

b)

Chemical property

c)

Real property

d)

Fake property

6.

An example of a pure substance is

a)

water

b)

salt water

c)

sunlight

d)

Gatorade

7.

All changes in state or phase are examples of...

a)

Chemical Changes

b)

Physical Changes

c)

Chemical Reactions

d)

Chemical Properties

8.

What kind of mixture is shown in the picture?

a)

Homogeneous

b)

Heterogeneous

9.

What kind of mixture is shown in the picture?

a)

Homogeneous

b)

Heterogeneous

10.

What kind of mixture is shown in the picture?

a)

Homogeneous

b)

Heterogeneous

11.
M&M's is an examples of a
a)
homogeneous mixture
b)
heterogeneous mixture
12.
Salad is an example of a
a)
homogeneous mixture
b)
heterogeneous mixture
13.
Dishwasher soap is an example of a
a)
homogeneous mixture
b)
heterogeneous mixture
14.

The "best mixed" of all mixtures is a (The one where the particles are the most mixed throughout)

a)

Suspension

b)

Compound

c)

Solution

d)

Heterogeneous Mixture

15.
Element or Compound?
H2O
a)
Element
b)
Compound
16.
Element or Compound?
H2SO4
a)
Element
b)
Compound
17.
Element or Compound?
Au
a)
Element
b)
Compound
18.
Element or Compound?
As
a)
Element
b)
Compound
19.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
20.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
21.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
22.

How many atoms are in O2 ?

a)

1

b)

2

c)

3

23.

How many atoms of each element are in NaCl?

a)

Na=1, Cl=1

b)

Na=2. Cl=2

c)

Na=1, Cl-2

24.

C6H12O6 has how many total atoms?

a)

6

b)

12

c)

24

25.

5 N2O represents the laughing gas you might have at the dentist. How many atoms of nitrogen are present here?

a)

1

b)

2

c)

7

d)

10

26.

How many Magnesium atoms are in 10MgCl2?

a)

10

b)

5

c)

20

27.
How many atoms of Oxygen are in Fe(NO3)3 ?
a)
6
b)
3
c)
9
d)
1
28.
Example for chemical property
a)
color
b)
hardness
c)
toxicity
d)
solubility
29.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
30.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
31.
What is made up two or more elements that are chemically combined?
a)
Element
b)
Mixture
c)
Compound
d)
Solids
32.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
33.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
34.

Choose the correct examples of mixture

a)

Salt solution

b)

Sand and rock

c)

Iron sulphide

d)

Lithium hydroxide

e)

Air

35.

Compound will have different properties than its original substances that formed it.

a)

Yes

b)

No

36.

Compound can be separated to its original elements using physical method

a)

Yes

b)

No

37.

There are chemical bond formed when you mix salt and water.

a)

Yes

b)

No

38.
Which of the following chemical formulas represents a compound? 
a)
C3
b)
O2
c)
CH3CHO
d)
H2
39.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
40.

Change in the physical appearance of matter WITHOUT creating a new material

a)

Physical Change

b)

Chemical Change

c)

Climate Change

41.

Change in matter that results in the formation of a new material. It happens when materials react to hear, air or water.

a)

Physical Change

b)

Chemical Change

c)

Climate Change

42.

IDENTIFY THE TYPE OF CHANGE.

Burning wood to form ash.

a)

Physical change

b)

Chemical change

43.

IDENTIFY THE TYPE OF CHANGE.

Ice melting.

a)

Physical change

b)

Chemical change

44.

IDENTIFY THE TYPE OF CHANGE.

Chopping wood

a)

Physical change

b)

Chemical change

45.

IDENTIFY THE TYPE OF CHANGE.

Fruit ripening

a)

Physical change

b)

Chemical change

46.

IDENTIFY THE TYPE OF CHANGE.

Rusting

a)

Physical change

b)

Chemical change

47.

IDENTIFY THE TYPE OF CHANGE.

Clay molding

a)

Physical change

b)

Chemical change

48.

IDENTIFY THE TYPE OF CHANGE.

Baking a cake

a)

Physical change

b)

Chemical change

49.

IDENTIFY THE TYPE OF CHANGE.

Breaking a glass

a)

Physical change

b)

Chemical change

50.

IDENTIFY THE TYPE IF CHANGE.

Cooking meat

a)

Physical change

b)

Chemical change

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