Question

Classify the changes involved in the following processes as physical, chemical or
both
a) Burning of coal
b) Melting of wax
c) Beating Aluminium to make Aluminium foil
d) Digestion of food
e) Boiling of egg
f) Photosynthesis
g) Cutting of wood​

Answer 1

Answer:

A. Chemical

B. Physical

C. Physical

D. Chemical

E. Chemical

F. Chemical

G. Physical

Explanation:

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Answer 2

Answer:

a) Chemical

b) physical

c)physical

d)chemical

e)physical

f)chemical

g)physical