Question

cutting of a wool is a physical change while burning of wood is a chemical change why​

Answer 1

Answer:

Question:-

cutting of a wool is a physical change while burning of wood is a chemical change why ??

Answer:-

Burning of wood is a chemical change while cutting of wood is a physical change because during burning, new substances are formed. After burning, we cannot get original substance, (i.e. wood) back. Cutting of wood into small pieces is a physical change because no new substance is formed.

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Answer 2

Answer:

pls help this question pls