Question

CaO + H2O=Ca(OH)2 name the type of chemical reaction

Answer 1

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.

Hope it helps

Answer 2

CaO + H2O=Ca(OH)2
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CaO = calcium oxide


H2O = water


Now,
CaO + H2O = Ca(OH)2


Ca(OH)2 = exothermic combination reaction.



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1) In this process, Calcium oxide reacts with water to form Ca(OH)2

2) Due to this reaction, a large amount of heat is generated.