Question

Q1.How can you say that burning of fuel is an important chemical change?​

Answer 1

Explanation:

Burning is a chemical reaction of the molecules of the fuel with molecules of oxygen in the air. ... Because all fossil fuels contain carbon, oxides of carbon will form when fossil fuels are burned. Two possible oxides can form: carbon monoxide (CO) and carbon dioxide (CO2)

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Answer 2

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New substances such as carbon dioxide and water form when we are burning coal. Due to formation of new substances, burning coal is classified as a chemical change.