Question

Now burn the paper. What change do you see?​

Answer 1

Explanation:

When a paper is burnt, the molecules of paper undergo change forming new substances like smoke and water vapour. The change here is irreversible. So, a burnt piece of paper cannot be brought back to its original form.

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Answer 2

Answer:

chemical change

Explanation:

burning a paper is a chemical change which can't be reversed. If you burn the paper you will be left with ashes which is the product of the reaction.