Question

Two proofs to show that a chemical reaction has occurred if you burn a piece of paper

Answer 1

Answer:

The process of combustion is referred to the process of burning the substance in the presence of oxygen. The burning of paper is considered to be a combustion reaction as it involves the chemical change in the substance. This is because when we burn a paper it undergoes the combustion reaction and during the combustion state of the substance it changes from its solid state or liquid state to gaseous state. So the burning of paper is considered as a chemical change as the paper after burning changes into ashes

Explanation:

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