safethrower safethrower

07-03-2019
Chemistry

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Which of these is an indication that a chemical reaction has occurred?

A. Freezing of a substance
B. Boiling of a substance
C. Melting of a substance
D. a change in color of a substance

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khameleonjr10 khameleonjr10

07-03-2019

D. a change in color of a substance

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