Question

The burning of paper is a chemical change. Why?

Answer 1

• Chemical change: A permanent change in which the original substance loses its composition and properties and gives rise to one or more new substances with different compositions and properties.
• Example: The burning of paper is an example of a chemical reaction because when it is burnt, it combines with oxygen to form smoke and ash (smoke and ash are new substances).

Therefore, the burning of paper is a chemical change.