Question

Compound a when dissolved in water gives compound b liberates heat compound a is used in white washing. compound b react with carbon dioxide to form a white of compound

c. identify compound a,b,c also write the equation involved

Answer 1

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I m writing it in short.
A. calcium oxide.
B. calcium hydroxide.
C. calcium carbonate

Answer 2

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Element A is calcium (Ca). When it reacts with water, it forms calcium hydroxide. Thus, compound B is calcium hydroxide [Ca(OH)2], which is used in white washing.