2 years ago

Which sentence describes the energy changes that occur when a chemical reaction happens?

1 answer:

5 0

Answer: The changes in energy that occur during a chemical reaction can be seen by examining the changes in chemical bonding. This can be used to classify reactions as exothermic or endothermic.

Explanation:

Energy changes Breaking and making bonds during a chemical reaction bonds in the reactants are broken new bonds are made in the products energy is absorbed to break bonds. Bond-breaking is an endothermic process. Energy is released when new bonds form.

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