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02-11-2017
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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ZappinApple ZappinApple

02-11-2017

D- If there is a color change that is indicative to that being a chemical change.

A, B, and C are examples of physical changes.

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17-12-2018

The answer is D. a change in color of a substance

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