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Chemistry, 05.10.2020 16:01 Harms

When an iron nail is ground into powder, its mass . a. stays the same

b. decreases

c. increases

d. cannot be determined

When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place?

a. a physical change

b. a chemical change

c. neither a physical change nor a chemical change

d. both a physical change and a chemical change

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Answers: 1

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When an iron nail is ground into powder, its mass . a. stays the same

b. decreases
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