Question

What happens to the chemical composition of a substance that undergoes a physical change?

Answer 1

Physical change:

• A physical change is a change in which no new substances are formed.
• It is a temporary and reversible change.
• All changes of state are physical changes.
• For example, the basic unit of water is a water molecule. Ice is also composed of water molecules. The difference is that in ice the molecules are closely packed and due to this force of attraction is also strong.

In this, we can say that in a physical change, the chemical composition of the substance does not change.