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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
salt
B
gold
C
propane
D
brass
2) Which of the following is a compound?
A
acetone
B
copper
C
calcium
D
magnesium
3) Which is a compound?
A
coffee
B
air
C
lettuce
D
sucrose
4) Which of the following substances is an element?
A
butane
B
steel
C
acetone
D
sodium
5) Which of the following is a compound?
A
carbon
B
potassium
C
helium
D
ethanol
6) Which of the following is a mixture?
A
graphite
B
helium
C
ammonia
D
vinegar
7) Which of the following is a mixture?
A
carbon dioxide
B
nitrogen
C
air
D
ice
8) Which of the following is a heterogeneous mixture?
A
vinegar
B
beach sand
C
vegetable oil
D
seawater
9) Which question is most appropriate when trying to identify whether a mixture is homogeneous?
A
Is the mixture warm or cool?
B
Is the mixture heavy or light?
C
Does the mixture have a uniform appearance?
D
Does the mixture contain any bubbles?
10) Which is a homogeneous mixture?
A
spaghetti sauce
B
toothpaste
C
cereal
D
soil
*select an answer for all questions
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