Question

why burning of water is a physical change and boiling of egg is a chemical change​

Answer 1

Answer:

First of all, bro, that's boiling of water and not burning (lol) .

Boiling of water is a physical change because in a physical change only the physical properties like the temperature or state of the matter changes. In this case, the state of the matter, i.e. water changes to gas / vapour. There is no change in the chemical properties of water. It still remains H2O. We can get back the water by cooling the vapour. So physical changes are reversible.

Boiling of egg is a chemical change because it is irreversible.

Answer 2

Answer:

So not to be rude but its not burning of water its boiling

Explanation:

so physical change is a change in which the shape size and colour of the object remains the same .

Most of the physical changes are reversible , there are only some exceptions

Now coming back if u boil water it turns into water vapour

but then when water vapour is cooled it condenses and we get back the water so boiling of water is a physical change

Now for Chemical change , its a type of change which involves a chemical reaction .Most chemical changes are irreversible there are few exceptions though

Now coming to boiling of egg

before boiling the egg the egg shell is hard and the yolk is in the form of liquid after boiling the egg shell becomes soft and the yolk becomes hard so you can say that boiling of egg is an irreversible change.

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