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Explain the terms with examples : Exot...

Explain the terms with examples :
Exothermic reaction

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The chemical reactions which are accompained by evolution of heat are called exothemic reations.
Example: When calcium oxide (CaO) is added to water, calcium hydroxide `(Ca(OH)_2)` is formed with generation of large amount of heat .
`underset("oxide")underset("Calcium")(CaO_((S)))+H_2O_((l))rarrunderset("hydroxide")underset("Calcium")(Ca(OH)_(2(aq)))+"Heat"`
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