Complete the following reactions:
$1$. Complete oxidation of alkane
$2$. Incomplete combustion of methane

(N/A) $1$. Complete oxidation of alkane:
$C_{n}H_{2n+2} + (\frac{3n+1}{2})O_{2} \rightarrow nCO_{2} + (n+1)H_{2}O$
$2$. Incomplete combustion of methane:
$CH_{4(g)} + O_{2(g)} \xrightarrow{\text{Incomplete combustion}} C_{(s)} + 2H_{2}O_{(l)}$
In the incomplete combustion of methane,carbon black (soot) is produced.