Question

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In _____ reactions, heat is liberated. ​

Answer 1

Answer:

Exothermic reaction

An exothermic reaction is a chemical or physical reaction that releases heat. It gives out energy to its surroundings. The energy needed for the reaction to occur is less than the total energy released.

Hope it helped you dear

Answer 2

Answer:

$\bf\huge\underline{Answer:-}$

In exothermic reaction reactions, heat is liberated.