Q. 94.5( 12 Votes )

What happens chemically when quicklime is added to water?

Answer :

When quicklime (calcium oxide- CaO) is added to water, it reacts vigorously with water to produce slaked lime (calcium

hydroxide) and releases a large amount of heat.


The reaction that takes place is:


CaO + H2O Ca(OH)2


Quick lime Slaked lime


The above reaction is an example of combination reaction in which calcium oxide and water combined together to form a single


product, calcium hydroxide.


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