Science
Name the type of chemical reaction in which calcium oxide reacts with water. Justify your answer by giving balanced chemical equation for the chemical reaction.
Answer
Combination reaction
CaO + H2O → Ca(OH)2
Reason — One molecule of calcium oxide combines with one molecule of water to give one molecule of calcium hydroxide, so atoms of Ca, O and H are balanced on both sides. This reaction is also exothermic (called the slaking of lime), because heat is released when calcium oxide combines with water.
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