Question

10. Which of the following is a chemical change ?
a) Cutting of wood
b)Burning of wood. C)Melting of wax
d) Freezing of water
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Answer 1

Explanation:

Aloha !

All the above are chemical changes .

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Answer 2

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a) physical change (no new substance is formed)

b) chemical change(new substance is formed)

c)physical change(no new substance is formed)

d)physical change (no new substance is formed)

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