4 signs of a chemical change

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asked Apr 9, 2017 44.6k views

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Alan Judi · Answer 1 · 2017-04-12T19:28:38+0000

There are four signs that a chemical reaction has occurred: a change in color, a change in temperature, formation of a gas or formation of a precipitate. A precipitate is a solid that forms when two liquid solutions are mixed.

4 signs of a chemical change

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