# Is hydrocarbon combustion an oxidation reaction with respect to the carbon?

Feb 18, 2017

My word, $\text{combustion reactions}$ are an $\text{oxidation}$ reaction with respect to the hydrocarbon...

#### Explanation:

The combustion of hydrocarbons is vital to our standard of living. You probably cooked your breakfast by using the given reaction:

$C {H}_{4} \left(g\right) + 2 {O}_{2} \left(g\right) \rightarrow C {O}_{2} \left(g\right) + 2 {H}_{2} O \left(g\right) + \Delta$

And of course if you drove to school/uni in a motor you utilized the combustion of longer chain hydrocarbons.

And we could put in oxidation numbers and electrons .... carbon is oxidized

$\stackrel{- I V}{C} {H}_{4} + 2 {H}_{2} O \rightarrow \stackrel{+ I V}{C} {O}_{2} \left(g\right) + 8 {H}^{+} + 8 {e}^{-}$

... and oxygen reduced....

${O}_{2} \left(g\right) + 4 {H}^{+} + 4 {e}^{-} \rightarrow 2 {H}_{2} O$

And so we take two of the latter and add this to one of the former, and cancel....