a chemical reaction which is both combination as well as exothermic is used by us for white washing purpose write the equation for the same?

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Solution

$The solution of slaked lime i . e . Ca (OH)_{2} is used for white washing walls . Slaked lime is formed when calcium oxide reacts with water . CaO (s) + H_{2} O (l) \to Ca (OH)_{2} (aq)$

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a chemical reaction which is both combination as well as exothermic is used by us for white washing purpose write the equation for the same?

The solution of slaked lime i.e. Ca(OH)2 is used for white washing walls. Slaked lime is formed when calcium oxide reacts with water.CaO (s)+H2O (l)→Ca(OH)2 (aq)

$The solution of slaked lime i . e . Ca (OH)_{2} is used for white washing walls . Slaked lime is formed when calcium oxide reacts with water . CaO (s) + H_{2} O (l) \to Ca (OH)_{2} (aq)$