Write the balanced chemical reaction for the combustion of benzene (${\mathrm{C}}_6{\mathrm{H}}_6$) .

Combustion:

1. Combustion is the process where a substance burns in the presence of Oxygen, involving the production of heat and light.
2. Combustion is carried out in a sufficient amount of Oxygen ( ${\mathrm{O}}_2$).
3. Complete combustion of benzene produces ${\mathrm{CO}}_2$ (Carbon dioxide) and ${\mathrm{H}}_2\mathrm{O}$ (Water) and incomplete combustion occurs when limited amount of ${\mathrm{O}}_2$ is supplied to give Carbon monoxide ($\mathrm{CO}$).

Combustion reaction of Benzene : $$\begin{gathered} {\mathrm{C}}_6{\mathrm{H}}_6\left(\mathrm{l}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\to {\mathrm{CO}}_2\left(\mathrm{g}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right) \\ \left(\mathrm{Benzene}\right)\left(\mathrm{Oxygen}\right)(\mathrm{Carbon}\mathrm{dioxide})\left(\mathrm{Water}\right) \end{gathered}$$

Balanced Combustion reaction of Benzene : $$\begin{gathered} {\mathrm{C}}_6{\mathrm{H}}_6\left(\mathrm{l}\right)+\frac{15}{2}{\mathrm{O}}_2\left(\mathrm{g}\right)\to 6{\mathrm{CO}}_2\left(\mathrm{g}\right)+3{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right) \\ \left(\mathrm{Benzene}\right)\left(\mathrm{Oxygen}\right)(\mathrm{Carbon}\mathrm{dioxide})\left(\mathrm{Water}\right) \end{gathered}$$

Therefore, the balanced chemical reaction for the combustion of Benzene (${\mathrm{C}}_6{\mathrm{H}}_6$) is $$\begin{gathered} {\mathbf{C}}_{\mathbf{6}}{\mathbf{H}}_{\mathbf{6}}\mathbf{}\mathbf{\left(}\mathbf{l}\mathbf{\right)}\mathbf{}\mathbf{}\mathbf{}\mathbf{+}\mathbf{}\mathbf{}\frac{\mathbf{15}}{\mathbf{2}}\mathbf{}{\mathbf{O}}_{\mathbf{2}}\mathbf{}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{}\mathbf{\to }\mathbf{}\mathbf{}\mathbf{}\mathbf{6}{\mathbf{CO}}_{\mathbf{2}}\mathbf{}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{+}\mathbf{}\mathbf{}\mathbf{3}{\mathbf{H}}_{\mathbf{2}}\mathbf{O}\mathbf{}\mathbf{\left(}\mathbf{l}\mathbf{\right)} \\ \mathbf{\left(}\mathbf{Benzene}\mathbf{\right)}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{\left(}\mathbf{Oxygen}\mathbf{\right)}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{(}\mathbf{Carbon}\mathbf{}\mathbf{dioxide}\mathbf{)}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{\left(}\mathbf{Water}\mathbf{\right)} \end{gathered}$$