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OpenStudy (anonymous):
Which identifies that a chemical reaction has occurred? A. New substances are produced. B. The color has changed. C. Bubbles have formed. D. Temperature has changed.
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OpenStudy (karrie631):
a
OpenStudy (karrie631):
*Because: color change, bubbles, and temperature changes can all happen via a chemical reaction but can also happen with the addition of heat. The production of a new/different substance is the only one that requires a chemical reaction to happen.
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