a chemical reaction is exothermic when_______
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An exothermic reaction is a chemical reaction in which less energy is needed to break bonds in the reactants than is released when new bonds form in the products. During an exothermic reaction, energy is constantly given off, often in the form of heat. All combustion reactions are exothermic reactions.
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Explanation:
a chemical reaction is exothermic when less energy is needed to break bonds in the reactants than is released when new bonds form in the products.
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