Question

the boiling of water is a physical change while the boiling an egg is a chemical change.Explain​

Answer 1

Answer:

this is because boiled water is again converted into normal water .

but once egg is boiled it's never come into its original form.

Answer 2

Answer:

Physical Change:

Reversible and Temporary.

Chemical Change:

Irreversible.

Boiling of egg a chemical change.In case of boiling egg the composition of egg is irreversible.New substance is formed so it irreversible.

Boiling of water is a physical change.

Boiling of water to form water vapour is a physical change.There is only a change in state of matter but no chemical changes has occurred.