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what happens when methane burns in air ? write chemical equation.

This reaction depends upon the amount of oxygen:

(a) When methane burnt in air or oxygen, it produces large amounts of heat, together with carbon dioxide and water vapour formation. Hence it is  used as fuels. Combustion of methane can be explained by following reaction:

combustion of methane

(b) When methane burnt in a very limited supply of air, it gives carbon black.

carbon black formation on methane combustion

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Methane is CH4 when it is burnt in oxygen it gives off heat and usually makes carbon dioxide and water

The balanced equation is: CH4 + 2 O2 ---> CO2 + 2 H20

If there is not enough oxygen sometimes it can also produce carbon monoxide (CO) instead of carbon dioxide.

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CH4 + 2O2 ----> CO2 + 2H2O + Heat and light

As methane is an energy giving compound, also due to combustion, it releases carbon dioxide, water, heat and light.

Hope this helps u.........

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ch4+o2=co2 +h20+heat and light

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