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Asked by Rohnit Last Modified
Answer 
(a) When water is added slowlyto a beaker containing a small amount of CaO the beaker becomes Reaction: CaO (s) + H2O
Theory
Quicklime reacts with water to form calcium hydroxide. As in this reaction two substances – quicklime and water combine to form a new substance, therefore, this reaction is called combination reaction. This chemical change can be represented by the given chemical equation:
During this chemical change, heat is also released. Therefore, this is also an example of exothermic reaction.
1.CaO + H2O --> Ca(OH)2
(Quick laim) (Slaked laim)
i.e, when water reacts with calsium oxide, water slowly get increased its temparature. if we do not pour water slowly rather directly, heated water may harm's our body if it's contacted with our body part.
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