Test - Chemical Reactions Flashcards by Ron Sharma | Brainscape

Q

Which of the following is an example of a physical change?: crushing, coloring, cutting, boiling, melting.

A

All of the above. NB 15

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Q

What type of reaction is FeS + 2HCl -> FeCl +HS

A

Decomposition. NB 12

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Q

What is an unbalanced equation?

A

2Fe O + 3C -> 3CO. NB 19

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Q

In chemical reactions, what does the principal of conservation of mass mean?

A

Matter is not created nor destroyed. NB 18

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Q

T or F: A change in a substance that only affects its physical properties is a chemical change.

A

False: Physical change. NB 15

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