Question

why is the burning of a substance or chemical change?

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Answer 1

Answer:Burning of substance is a chemical change because after burning there is a formation of complete new substance. You cannot get back the original substance

Explanation:

Answer 2

Answer:

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Explanation:

Combustion is a chemical change. Simply put, a physical change is a change in the position or spacing of the particles making up a substance; a chemical change results when the bonds between component atoms shift. The burning of methane, for example, could be represented by CH4 + 2 O2 →CO2 + 2H2O. Bonds between carbon and hydrogen are broken, bonds between carbon and oxygen, and between hydrogen and oxygen, are formed.