What happens chemically when quicklime is added to water filled in a bucket?


When quicklime (calcium oxide) is added to water filled in a bucket, it reacts with water chemically to form slaked lime (calcium hydroxide) and produce heat energy. So, water in the bucket becomes hot as it is an exothermic reaction.
    $\ CaO\ ( s) +H_{2} O\ ( l)\rightarrow Ca( OH)_{2\ }( aq) \ +Heat$
   Calcium oxide + Water   Calcium hydroxide + Heat

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Updated on: 10-Oct-2022

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