Question

Explain why burning of wood and cutting it into small pieces are

considered as two different types of changes.​

Answer 1

Explanation:

The burning of wood leads to the formation of new substances like ash(carbon), carbon dioxide gas, water vapour, heat and light. This change is irreversible and hence a chemical change. While cutting wood into smaller pieces is a physical change as there is no change in the original composition of wood.

Answer 2

Answer:

It is because burning of wood is a chemical change it result in formation of a new of substances with different properties it is a permanent change and cannot be reversed were cutting wood into smaller pieces is a physical change it result in different form for state of matter .It can often be reversed .