Question

3) List five changes wich can be reversed.
Ansg=​

Answer 1

Answer:

1-melting of wax

2-folding of paper

3-freezing of water

4-disolving of sugar into water

5-expansion of metal on heating

Explanation:

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Answer 2

Answer: 1-melting of wax

              2-folding of paper

              3-freezing of water

              4-disolving of sugar into water

              5-expansion of metal on heating