Question

Give two examples for each of the following cases: a. Physical changes which are reversible. b. Physical changes which are not reversible. c. Chemical changes.

May 21, 2024

Answer

(a) (i) Folding of paper

(ii) Melting of ice

(b) (i) Tearing of paper

(ii) Breaking of glass

(c) (i)Reaction between vinegar and baking soda

(ii) Burning of a matchstick

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