\(2CH_4(g) + 3O_2(g) \rightarrow C(s)+CO_2(g) + 4H_2O(l)\)
or
\(6CH_4(g) + 9O_2(g) \rightarrow 2C(s)+2CO(g)+2CO_2(g) + 12H_2O(l)\)
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