I want to know is there a such thing as a gas that can be reburned multiple times?

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    $\begingroup$ What you essentially asking for is free energy. This is not possible. $\endgroup$ – bon May 25 '16 at 11:58

In short: There are no compounds that can go through complete combustion more than once.

Incomplete combustion products, like carbon monoxide, can be burned to give the complete combustion product $CO_2$. This would however then not be the same gas as was (incompletely) burned to give the carbon monoxide.

As bon mentioned in his comment: a compound can never be burned twice, since if the product of the reaction would be the starting material and energy were to be expected to be released, as with a fuel, then energy would come from nothing, since no chemical change would have occurred.


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