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13 September, 14:51

2. How do chemical reactions involve energy?

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  1. 13 September, 15:09
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    Answer:Chemical reactions often involve changes in energy due to the breaking and formation of bonds. Reactions in which energy is released are exothermic reactions, while those that take in heat energy are endothermic. exothermicA description of a chemical reaction that releases heat energy to its surroundings.
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