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Chemistry 13 Online
OpenStudy (anonymous):

The best clue that a chemical reaction has occurred is A. a change in odor. B. a change is color. C. heat absorbed or given off. D. irreversibility. E. production of a gas.

OpenStudy (rane):

wht do u think?

OpenStudy (anonymous):

B - change in color

OpenStudy (rane):

CORRECT

OpenStudy (anonymous):

Thank you so much!!!

OpenStudy (rane):

any time :)

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