Question

classify the following changes as physical and chemical changes a) deflating of a cycle tyre tube b) glowing of iron placed in a fire c) baking of bread d) digestion of food e) turning a key to open a lock f) burning of candle right the correct answer and i will mark you the brainliest and follow you

Answer 1

Answer:

chemical changes

deflating of a cycle tyre tube

baking of bread

burning of candle

chemical changes

glowing of iron placed in a fire

digestion of food

turning a key to open a lock

Answer 2

Answer:

a) Physical

b) Physical ( no change is there in its chemical composition it's just glowing because of high temperature)

c) Physical ( Burning is a chemical change but Baking and Heating are physical changes)

d) Chemical

e) Physical

f) Both Chemical and Physical ( candle is melting and at the same time it is getting burned as well)