Question

Can physical and chemical changes occur together​

Answer 1

Explanation:

In some cases,physical and chemical changes occur together.As you can take example of burning of candle.The solid wax present in the candle in the first changes into liquid state and then at last changes into vapour state.But both these changes are physical changes.

The wax vapours then combine with oxygen of air to form a mixture of carbon dioxide and water but this involves chemical change.

The unburnt wax vapours again change first to liquid and then at last to the solid state.This interconversion of states is a physical change.So from above conclusion we can conclude that burning of candle involves both physical and chemistry changes.