Question

A bag of cement lying in the open gets wet due to rain during the night ; the next day the sun shines brightly. Do you think the changes which have occurred in the cement , could be reversed? ​

Answer 1

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No, the change in cement with water and heat is a irreversible change. By adding water in cement does not change into it's initial process...

Answer 2

Answer:

no that couldn't be reversed though it is a physical change.

It's an irreversible change......

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