Why energy is involved ina a chemical change
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Answer:
exothermic reaction
Explanation:
HELLO,
The energy change in a chemical reaction is due to the difference in the amounts of stored chemical energy between the products and the reactants. This stored chemical energy, or heat content, of the system is known as its enthalpy. Exothermic reactions release heat and light into their surroundings.
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.