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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.
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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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