CH-1495

Alkanes

Chemistry · Secondary 4 · Medium · Alkanes

Methane,

CH_4

, is the main component of biomethane. When it burns completely in oxygen, which balanced equation is correct?

$CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O$
$CH_4 + O_2 \rightarrow CO_2 + 2H_2O$
$CH_4 + 3O_2 \rightarrow CO_2 + 2H_2O$
$2CH_4 + O_2 \rightarrow 2CO_2 + 4H_2O$

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