Question

Classify the following changes as reversible and irreversible changes: (2)

a) burning of paper

b) conversion of water into water vapour

c) growth of a baby

d) tearing of paper​

Answer 1

Answer:

a) irreversible

b reversible

c. irreversible

d. irreversible

Explanation:

burnt paper ash- will be formed(new substance)

water to water vapour ( heating) no new substance

growth of a baby- adult (new substance)

tearing of paper- torned paper(new substance)

Answer 2

Answer:

a) irreversible

b) reversible

c) irreversible

d) irreversible