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Tanmay Shreshth , asked a question
Subject: Science , asked on 22/7/13

an example of a reversible chemical change

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Satvik Bansal , added an answer, on 23/7/13
10 helpful votes in Science

melting of ice

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Aditya Nandy , added an answer, on 23/7/13
259 helpful votes in Science

An example of a reversible chemical change is thermal decomposition of salts such as hydrates copper-sulphate results in the dehydration of the salt.

CuSO 4 .5H 2 O ———–> CuSO 4  (s) + 5H 2 O (g)

In this reaction, colour changes from blue to white. Water is removed from the copper sulphate. This dehydration reaction can be reversed by slowly adding water back to the powder. This reaction is exothermic and the blue colour of the powder is retained.

CuSO 4  (s) + 5H 2 O ————> CuSO 4 .5H 2

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Yadavi Malhotra , added an answer, on 22/7/13
5 helpful votes in Science

example for reversible change is folding of paper.

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