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In-s [12.5K]
3 years ago
6

Which of these is an indication that a chemical reaction has occurred? A.Melting of a substance B.Boiling of a substance C.Forma

tion of a gas D.Freezing of a substance
Chemistry
1 answer:
podryga [215]3 years ago
7 0

The answer is formation of gas because melting, boiling, and freezing are only property changes

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