CaO (s)+H2O(l)------>Ca(OH)+Heat is type of reaction

1.	CaO (s)+H2O(l)------>Ca(OH)+Heat is type of reaction
Answer» Exothermic reaction The reaction between calcium oxide (CaO) and water (H2O) to form calcium hydroxide Ca(OH)2 is an exothermic combination reaction.This is because: Calcium oxide reacts with water to form slaked lime Ca(OH)2 which means the oxides of calcium combine with molecules of free molecules of O- and H+This reaction generates a lot of heat accompanied with hissing sound and thus is stated to be exothermic.

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