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Unit 2 Review

Total questions: 61

Worksheet time: 47mins

Name
Class
Date
1.
Are made from a combination of 2 or more elements in a constant ratio...
a)
Atome
b)
Mixture
c)
Compounds
d)
Elements
2.
A combination that can be separated by physical processes is a .....
a)
Atom
b)
Compound
c)
Element
d)
Mixture
3.
What is a homogeneous mixture?
a)
a mixture that is the same throughout.
b)
a mixture that is made up of one type of atom.
c)
a mixture that is made up of one type of compound
d)
a mixture that cannot be separated through physical changes
4.
A mixture that is NOT evenly distributed is called ....
a)
Compounded
b)
Homogenous
c)
Heterogenous
d)
Salty
5.
What type of mixture is this?
a)
homogenous mixture
b)
chemical
c)
heterogeneous mixture 
d)
solid mix
6.
Italian Salad Dressing is a . . .
a)
heterogeneous mixture
b)
homogeneous mixture
c)
Pure Substance
d)
Compound
7.
Chicken soup is an example of what kind of substance?
a)
homogenous mixture
b)
solution
c)
heterogeneous mixture
d)
compound
8.
Kool-Aid
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
9.
Carbon
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
10.
Aluminum
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
11.
Co
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
12.
O2
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
13.
Lucky Charms
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
14.
NaCl
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
15.
Sweet Tea
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
16.

Freshly brewed black coffee

a)

Heterogeneous

b)

Homogeneous

17.

Lucky Charms

a)

Heterogeneous

b)

Homogeneous

18.

Dirt

a)

Heterogeneous

b)

Homogeneous

19.

Sausage and mushroom pizza

a)

Heterogeneous

b)

Homogeneous

20.

Air

a)

Heterogeneous

b)

Homogeneous

21.

Milk

a)

Heterogeneous

b)

Homogeneous

22.

Blood

a)

Heterogeneous

b)

Homogeneous

23.

Brass (an alloy)

a)

Heterogeneous

b)

Homogeneous

24.

Chicken noodle soup

a)

Heterogeneous

b)

Homogeneous

25.

A salad with lettuce, cheese, seeds, tomatoes, broccoli, and other vegetables

a)

Heterogeneous

b)

Homogeneous

26.

Coca-Cola

a)

Heterogeneous

b)

Homogeneous

27.

M&Ms

a)

Heterogeneous

b)

Homogeneous

28.

Jello

a)

Heterogeneous

b)

Homogeneous

29.

Fruit salad

a)

Heterogeneous

b)

Homogeneous

30.

Kool-Aid

a)

Heterogeneous

b)

Homogeneous

31.

Glue

a)

Heterogeneous

b)

Homogeneous

32.

Cereal with milk

a)

Heterogeneous

b)

Homogeneous

33.

Oil and vinegar salad dressing

a)

Heterogeneous

b)

Homogeneous

34.

Beach sand

a)

Heterogeneous

b)

Homogeneous

35.

Chocolate chip ice cream

a)

Heterogeneous

b)

Homogeneous

36.
What type of mixture is this?
a)
heterogeneous 
b)
homogeneous
37.
What type of mixture is this?
a)
heterogeneous 
b)
homogeneous
38.
Which of the following are pure substances?
a)
solutions
b)
compounds
c)
homogeneous mixtures
d)
colloids
39.
A substance that is made up of only one kind of atom is a(an)
a)
compound
b)
homogeneous mixture
c)
element
d)
solution
40.
Two classifications of a pure substance are
a)
homogeneous and heterogeneous
b)
atoms and elements
c)
elements and compounds
d)
solutions and colloids
41.
Water boiling is a _______ change. 
a)
Physical Change 
b)
Chemical Change 
42.
Fireworks Exploding are a ________ change.
a)
Physical Change
b)
Chemical Change
43.
Which is a chemical property 
a)
Reactivity 
b)
Solid
c)
Color
d)
Shape
44.
What is a physical property of this table? 
a)
Brown
b)
Flammable
c)
Reactive to Acid
45.
A piece of paper burned. This shares a property that paper has. What is a chemical property that paper has been shown? 
a)
Flammable
b)
Reactive to Acid
c)
Shape change
d)
Size change
46.
A characteristic that can only be determined by changing the identity of an object. 
a)
Physical Change
b)
Chemical Change
c)
Chemical Property 
d)
Physical Property 
47.
A characteristic that can be observed or measured without changing the composition of the substance. 
a)
Physical change
b)
Chemical change
c)
Chemical Property
d)
Physical Property
48.
Sugar is dissolved into Kool Aid. What type of change is this? 
a)
Chemical 
b)
Physical 
c)
Multi
d)
Asystematic 
49.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
50.
Fizzing, foaming, and burning are all examples of
a)
Chemical change
b)
Physical change
51.
Rust on an iron bar is an example of chemical change.
a)
True 
b)
False
52.
When you break a cracker into pieces it is a...
a)
Chemical change
b)
Physical change
53.

Which of the following is a diatomic molecule:

a)

O2

b)

H2

c)

N2

d)

F2

e)

These are all diatomic molecules

54.

Which of the following is not a diatomic molecule:

a)

O2

b)

H2

c)

N2

d)

F2

e)

CO2

55.

What method should you use to separate iron shavings and sand?

a)

filtration

b)

sorting

c)

magnet

d)

boiling

56.

Which mixture separation method would use to separate salt from water?

a)

filtration

b)

magnet

c)

boiling/evaporation

d)

sorting physically

57.
Which technique is shown the diagram below
a)
seiving
b)
filtration
c)
decanting
d)
crystallization
58.
Sand and gravel may be separated from each other through using
a)
a filter funnel
b)
leibig condenser
c)
an evaporating basin
d)
sieve
59.
Dyes in water soluble markers may be separated by means of
a)
Distillation
b)
Decanting
c)
Chromatography
d)
Centrifuge
60.
Which one of the following is the name for separation technique in the picture below
a)
distillation
b)
dissolving
c)
evaporation
d)
decanting
61.
Which separation technique could you use to recover fresh drinking water from salty sea water?
a)
Filtration
b)
Decantation
c)
Distillation
d)
Evaporation

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