Combustion
Combustion describes the chemical reaction where some substances react with oxygen in an exothermic reaction ( that is heat is produced). If flames are produced during combustion, it is called burning.
Example when magnesium is burnt in oxygen, a new product will be formed and heat is produced. The new product formed by the magnesium and oxygen is magnesium oxide.
Hydrocarbons are fuels which are burnt to produce energy.Hydrocarbons are compounds that consist of carbon and hydrogen. Example, when it is burned in oxygen, it produces carbon dioxide and water.
This is an exothermic reaction as heat is produced.
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