List the various chemical reactions of methane $(CH_4)$.

(N/A) The chemical reactions of methane $(CH_4)$ are as follows:
$1$. Halogenation: $CH_4 + Cl_2 \xrightarrow{hv} CH_3Cl + HCl$ (Methyl chloride)
$2$. Incomplete combustion: $2CH_4 + 3O_2 \xrightarrow{} 2C_{(s)} + 4H_2O$ (Carbon black)
$3$. Complete combustion: $CH_4 + 2O_2 \xrightarrow{} CO_{2(g)} + 2H_2O_{(l)}$ (Carbon dioxide)
$4$. Controlled oxidation: $2CH_4 + O_2 \xrightarrow{Cu, 523 K, 100 atm} 2CH_3OH$ (Methanol)
$5$. Controlled oxidation: $CH_4 + O_2 \xrightarrow{Mo_2O_3, \Delta} HCHO + H_2O$ (Methanal)
$6$. Reaction with steam: $CH_4 + H_2O_{(g)} \xrightarrow{Ni, \Delta} CO + 3H_2$ (Carbon monoxide and Dihydrogen)
$7$. Iodination: $CH_4 + I_2 \xrightarrow{HIO_3 + 5HI_3 + 3I_2 + 3H_2O} CH_3I + HI$ (Methyl iodide)
$8$. Bromination: $CH_4 + Br_2 \xrightarrow{hv} CH_3Br + HBr$ (Methyl bromide)