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Chemical Reactions
Test Description: Identifying evidence of new substances formed
Instructions: Answer all questions to get your test result.
1) Two substances combine to form a new substance with new properties.
A
physical change
B
mixture
C
chemical change
2) Two liquids combine creating a solid substance at the bottom. This solid is called a
A
physical change
B
precipitate
C
molecule
D
atom
3) Which of the following is an example of a chemical change?
A
boiling water on the stove
B
dissolving sugar in water
C
cutting a piece of paper
D
iron rusting
4) Which of the following is NOT a chemical change
A
digesting food
B
acid rain weathering limestone
C
freezing water
D
baking cookies
5) Which of the following IS evidence of chemical change
A
change in size
B
change in state
C
change in shape
D
change in smell
6) Which of the following IS evidence of chemical change
A
change in size
B
change in shape
C
expected change in color
D
change in temperature
7) Which of the following is NOT and example of chemical change?
A
mixing salt in water and the salt disolves
B
combining two clear liquids and a bright pink liquid appears
C
combining a white substance and clear liquid and a gas is produced
D
mixing a clear liquid with a white liquid and a solid substance forms
8) Which of the following NOT a physical change?
A
cutting paper
B
burning wood
C
boiling water
D
melting butter
9) All of the following are evidence of chemical change EXCEPT
A
light production
B
sound production
C
temperature change
D
change in state of matter
10) Which IS an example of a chemical change?
A
evaporation
B
mixing oil and water
C
photosynthesis
D
mixing salt and pepper
*select an answer for all questions
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