Tell us about the essence of the combustion process. Under what conditions does it occur? What is the mechanism for stopping combustion?

The essence of the combustion process was discovered in 1756 by the great Russian scientist M.V. Lomonosov. With his experiments, he proved that combustion is a chemical reaction of a compound of a combustible substance with atmospheric oxygen. Therefore, in order for the combustion process to proceed, the following conditions are necessary:
• the presence of a combustible substance (a substance that can burn after removing the source of ignition);
• the presence of an oxidizing agent (usually the oxidizing agent during the combustion of substances is atmospheric oxygen; oxidizing agents can also be chemical compounds containing oxygen in the composition of molecules: nitrate, perchlorates, nitric acid, nitrogen oxides, and some chemical elements – fluorine, bromine, chlorine);
• the presence of an ignition source (open flame of a candle, match, lighter, bonfire or spark).
It follows that the combustion process can be stopped if one of the listed conditions is excluded from it.

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