The reaction $CaO + H_2O \rightarrow Ca(OH)_2 + Heat$ i... – Chemistry

Chemistrymedium · Past Paper

The reaction $CaO + H_2O \rightarrow Ca(OH)_2 + Heat$ is:

AEndothermic and Combination

BExothermic and Combination

CExothermic and Decomposition

DEndothermic and Displacement

✓ Correct Answer: B — Exothermic and Combination

It is a combination reaction (two reactants form one product) and it releases significant heat energy (exothermic).

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