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4 July, 16:29

Which Of These Is An Indication That A Chemical Reaction Has Occurred?

A. Freezing Of A Substance

B. Melting Of A Substance

C. Boiling Of A Substance

D. Formation Of A Gas

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  1. 4 July, 19:38
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    The answer is b. Because when chemicals react there is usually a melting of some sort but with some it could be freezing or boiling
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