Question

What are the characteristics of a chemical change?

Answer 1

Chemical change:

• A chemical change involves the formation of a new product.
• It is a change in which the molecular composition of a substance gets changed completely.
• Examples are the burning of wood or paper, the digestion of food, and the rusting of iron.

Characteristics of a chemical change:

• A chemical change is irreversible in nature.
• It is a permanent change
• A colour change might occur in a chemical change.
• The composition of a substance gets changed during a chemical change.
• Energy changes occur during a chemical change.