Question

Classify the changes involved in the following processes as physical or
chemical changes:
Photosynthesis
(b)
Dissolving sugar in water
(0)
Burning of coal​

Answer 1

Explanation:

Photosynthesis -- Chemical change

Dissolving sugar in water -- Physical change

Burning of coal -- Chemical change

Answer 2

Answer:

(a) Photosynthesis → Chemical change

(b) Dissolving sugar in water → Physical change

(c) Burning of coal → Chemical change

(d) Melting of wax → Physical change

(e) Beating aluminium to make aluminium foil → Physical change

(f) Digestion of food → Chemical change

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