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