Question

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
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Answer 1

Answer:

The chemical changes are as follows:

Explanation:

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

 

-TheUnknownScientist 72

Answer 2

Explanation:

a, b, d, e and g

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