Question

exothermic reaction is the reaction in which heat is liberated​

Answer 1

Answer:

An exothermic reaction is a "reaction for which the overall standard enthalpy change ΔH⚬ is negative." Exothermic reactions usually release heat and entail the replacement of weak bonds with stronger ones. ... Most of the spectacular chemical reactions that are demonstrated in classrooms are exothermic and exergonic.

Answer 2

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Exothermic reactions are ones that liberate heat energy. The excess heat in the reaction is the result of the formation of new bonds in the products. One of the most obvious types of exothermic reaction is the combustion reaction.