Question

Classify the following changes into physical and chemical changes:

(a) Digestion of food (b) Sublimation of iodine

(c) Burning of a candle (d) Rusting of iron

(e) Breaking glass (f) Explosion of fire cracker

(g) Ripening of fruits (g) freezing of water​

Answer 1

Answer:

A chemical change is a change that brings a change in the chemical properties of matter and a new substance is formed.

Examples of chemical changes from the given list of changes are:

Growth of a plant, Rusting of iron, Cooking of food, Digestion of food, and Burning of a candle.

Thank you =)