Question

CaO + H₂O → Ca(OH)₂ + heat, Identify the endothermic and exothermic reaction

Answer 1

It is the exothermic reaction as heat is evolved during the reaction.

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Answer 2

Answer:

Exothermic reaction

Explanation:

The given balanced chemical equation

CaO + H₂O ⇒ Ca(OH)₂ + heat

Now, we know that

Exothermic reactions are those chemical reactions which release energy during the reaction either in the form of light and heat. It is the excess energy released as heat and light. That is a chemical or physical reaction that releases heat.

Expressed in a chemical reaction:

Reactants ⇒ Products + Heat

So,

The given equation also release heat that is CaO + H₂O ⇒ Ca(OH)₂ + heat.

Hence, it is an exothermic reaction.