Question

please answer me fast and I am in std 7​

Answer 1

Answer:

Burning of paper produces ash as a result, which can't be converted back to paper. Its properties are entirely different from that of paper.

Hope my answer helps.

Answer 2

The act of burning paper actually results in the formation of new chemicals (carbon dioxide and water, to be exact) from the burning of the wax. Another example of a chemical change is what occurs when natural gas is burned in your furnace.

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