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What does one mean by exothermic and endothermic reactions? Give examples,

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asked Feb 7, 2018 in Chemistry by sforrest072 (157,439 points) ● 60 ● 409 ● 933

What does one mean by exothermic and endothermic reactions? Give examples.

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answered Feb 7, 2018 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Feb 7, 2018 by sforrest072
 
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Exothermic reactions: Reactions accompanied by evolution of heat are called exothermic reactions.

eg.CaO(s) + H2O(l) → Ca(OH)2(aq) + Heat
Quick lime               Water Slaked lime

Endothermic reactions: Reactions in which e.nergy is absorbed are called endothermic reactions.

eg. Decomposition of silver bromide:

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