What is the standard half-cell potential for the oxidation of methane under acidic conditions? the reaction for methane is as follows:
ch4(g) + 2h20(l) → co2 +8h⁺ +8e⁻
what element is oxidized and how does its oxidation state change?

The element that is oxidized is carbon.

Its oxidation state increased. It increased from -4 to +4

Explanation:

Oxidation is a process that involves increase in oxidation number.

The oxidation number of carbon in CH4 is -4

C + (1×4) = 0

C + 4 = 0

C = 0 - 4 = -4

The oxidation number of carbon in CO2 is +4

C + (2×-2) = 0

C - 4 = 0

C = 0+4 = 4

Increase in the oxidation number of carbon from -4 to +4 means carbon is oxidized

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