Question

11. Which of the following are chemical changes?
(a) Growth of a plant
(b) Rusting of iron
(c) Mixing of iron filings and sand
(d) Cooking of food
(e) Digestion of food
(f) Freezing of water
(g)Burning of a candle.​

Answer 1

Answer:

growth of a plant , cooking of food , digesting of food

Explanation:

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Answer 2

Answer:

i think (g)

burning of a candle