Question

Give one example in each case:
a. Change that occurs on cooling but can be reversed.
b. Change that occurs on heating but cannot be reversed
c. Change that occurs on heating but can be reversed.​

Answer 1

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Answer 2

a. Conversion of ice into water and water into ice is an example of change which can be reversed.

b. mixing of salt in water is a change that can be reversed by heating and melting of salt..  

c.  mixing of salt in water is a change that can be reversed by heating and melting of salt.