Question

3 differences between physical and chemical changes​

Answer 1

physical changes are reversible, chemical changes are not reversible

physical changes bring change in the physical property of substance , whereas chemical change bring changes in chemical property

in physical change no new product is formed , in chemical change new product is formed

eg - blowing of balloon is a physical change , burning of candle is a chemical change

Answer 2

Physical change

• It is a change in which only physical properties are changed

• It is a reversible change

• No new product is formed

• Example- Melting of ice

Chemical change

• It is a change in which chemical properties are changed and a new substance is formed

• It is a irreversible change

• New product is formed

• Example- Burning of paper