Question

Give an example in each
case: (a) Change which occurs
on heating but can be reversed,
(b) Change which occurs on
mixing two substances, but can
be reversed, (C) Change which
occurs on heating but cannot be
reversed *
Your answer​

Answer 1

Answer:

(A) mixing of salt in water is a change that can be reversed by heating and melting of salt. (b) mixing of salt in water is a change that cannot be reversed.

(B) Change which occurs on mixing two substances, but can be reversed: Formation of salt solution.

(C) (iii) Size of the candle was reducing. (iv) Melted wax was getting solidified.

Explanation:

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