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Chemical Reactions 2
Test Description: Evidence of a chemical reaction, mixtures, compounds, and elements based on Arizona standards.
Instructions: Answer all questions to get your test result.
1) Which of the following substances is an element?
A
propane
B
gold
C
salt
D
brass
2) Which of the following is a compound?
A
copper
B
calcium
C
magnesium
D
acetone
3) Which is a compound?
A
sucrose
B
air
C
coffee
D
lettuce
4) Which of the following substances is an element?
A
butane
B
sodium
C
acetone
D
steel
5) Which of the following is a compound?
A
carbon
B
potassium
C
ethanol
D
helium
6) Which of the following is a mixture?
A
helium
B
ammonia
C
graphite
D
vinegar
7) Which of the following is a mixture?
A
ice
B
air
C
carbon dioxide
D
nitrogen
8) Which of the following is a heterogeneous mixture?
A
vinegar
B
seawater
C
beach sand
D
vegetable oil
9) Which question is most appropriate when trying to identify whether a mixture is homogeneous?
A
Does the mixture have a uniform appearance?
B
Does the mixture contain any bubbles?
C
Is the mixture warm or cool?
D
Is the mixture heavy or light?
10) Which is a homogeneous mixture?
A
toothpaste
B
cereal
C
spaghetti sauce
D
soil
*select an answer for all questions
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