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Classify the changes involved in the following processes as physical or chemical changes:
(a) Photosynthesis
(b) Dissolving sugar in water
(c) Burning of coal
(d) Melting of wax
(e) Beating aluminium to make aluminium foil
(f) Digestion of food

Sagot :

poudelpreetika

Answer:

a) Photosynthesis - chemical change

b) dissolving sugar in water -physical change

c) burning of coal- chemical change

d) melting of wax- Physcial change

e) beating of aluminum to make Almunium foil-Physical change

f) digestion of food- chemical change

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