Chemistry, asked by ghostrunner, 1 day ago

When water is added to a white powder ‘A’, vigorous reaction takes place and a large amount
of heat is released with formation of ‘B’. ‘B’ is also used for white washing. Identify ‘A’ and ‘B’
write a chemical equation for its reaction with water

Answers

Answered by gayajetline

Answer:

When water is added to the White powder of calcium oxide or quick lime it forms the slaked lime which is used in washing with release of large amount of heat. calcium oxide reacts with cold water to form calcium hydroxide which is a base .

Explanation:

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Answered by nithya202020

Answer:

A is CaO (calcium oxide)

B is Ca(OH) $_2$ (calcium hydroxide)

Explanation:

Calcium oxide is a white powder

Calcium hydroxide is formed in this reaction

They are used for white washing

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When water is added to a white powder ‘A’, vigorous reaction takes place and a large amount of heat is released with formation of ‘B’. ‘B’ is also used for white washing. Identify ‘A’ and ‘B’ write a chemical equation for its reaction with water

Answers

When water is added to a white powder ‘A’, vigorous reaction takes place and a large amount
of heat is released with formation of ‘B’. ‘B’ is also used for white washing. Identify ‘A’ and ‘B’
write a chemical equation for its reaction with water