Question

Find it is physical or chemical change :-

1) melting of wax
2) burning of wax
3)Digestion of food
4) burning of wood
5) cutting of wood into small pieces

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Answer 1

Explanation:

Burning of wood is a chemical change because wood on burning converted to new substances like ash (carbon), carbon dioxide gas, water vapour, heat and light. The change is irreversible.

Answer 2

Answer:

physical change

Explanation:

there is no any chemical released in change