3. Which property of a substance changes during a chemical change?
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Explanation:
Decomposition, the opposite of combination, involves the breakdown of a single substance into two or more different substances. The signs of chemical change include changes in color, temperature, the production of light, changes in odor, and the formation of gases.
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The signs of chemical change include changes in color, temperature, the production of light, changes in odor, and the formation of gases.
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