Question

Explain why burning of wood and cutting it into small pieces are considered as two different types of change .​

Answer 1

Answer:

Burning of wood is a chemical change because in burning new substances are as woodt oxygen →→→Charcoalt Carbondioxide formed

+Heat thight.

But cutting it into small pieces is a physical change because no new substance is produced. We can reduce the size of the wood.

Answer 2

Answer:

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. Also, no new substances are formed.

Explanation:

Answered by Sasha