Exothermic reactions of elements or organic compounds with oxygen are called.?

This is a fill in the blank question.

Answer:
Combustion or burning , and it is a complex sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat or both heat and light in the form of either a glow or flames.

In a complete combustion reaction, a compound reacts with an oxidizing element, such as oxygen or fluorine, and the products are compounds of each element in the fuel with the oxidizing element. For example:

CH4 + 2O2 → CO2 + 2H2O + heat
CH2S + 6F2 → CF4 + 2HF + SF6 + heat
A simpler example can be seen in the combustion of hydrogen and oxygen, which is a commonly used reaction in rocket engines:

2H2 + O2 → 2H2O + heat
The result is simply water vapor.

In the large majority of the real world uses of combustion, the oxygen (O2) oxidant is obtained from the ambient air and the resultant flue gas from the combustion will contain nitrogen:

CH4 + 2O2 + 7.52N2 → CO2 + 2H2O + 7.52N2 + heat
As can be seen, when air is the source of the oxygen, nitrogen is by far the largest part of the resultant flue gas.

In reality, combustion processes are never perfect or complete. In flue gases from combustion of carbon (as in coal combustion) or carbon compounds (as in combustion of hydrocarbons, wood etc.) both unburned carbon (as soot) and carbon compounds (CO and others) will be present. Also, when air is the oxidant, some nitrogen will be oxidized to various, mostly harmful, nitrogen oxides (NOx).
Combustion reactions
combustion reactions
I think it might be a combustion reaction. A combustion reaction is a reaction in which a substance reacts with oxygen, usually with the release of heat and light to produce a flame.
The organic magnesium compounds containing oxygen are preferably magnesium alkanolates.
combustion reactions

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