Balance each reaction and write its reaction quotient,${\mathbf{Q}}_{\mathbf{C}}$ :

$$\begin{gathered} \mathbf{\left(}\mathbf{a}\mathbf{\right)}\mathbf{}{\mathbf{NO}}_{\mathbf{2}}\mathbf{CI}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{}\mathbf{𝆏}\mathbf{}\mathbf{}\mathbf{}{\mathbf{NO}}_{\mathbf{2}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{+}{\mathbf{CI}}_{\mathbf{2}}\mathbf{\left(}\mathbf{g}\mathbf{\right)} \\ \mathbf{\left(}\mathbf{b}\mathbf{\right)}\mathbf{}{\mathbf{POCI}}_{\mathbf{3}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{}\mathbf{𝆏}\mathbf{}\mathbf{}{\mathbf{PCI}}_{\mathbf{3}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{+}{\mathbf{O}}_{\mathbf{2}}\mathbf{\left(}\mathbf{g}\mathbf{\right)} \\ \mathbf{\left(}\mathbf{c}\mathbf{\right)}\mathbf{}{\mathbf{NH}}_{\mathbf{3}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{+}{\mathbf{O}}_{\mathbf{2}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{}\mathbf{𝆏}\mathbf{}\mathbf{}{\mathbf{N}}_{\mathbf{2}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{+}{\mathbf{H}}_{\mathbf{2}}\mathbf{O}\mathbf{\left(}\mathbf{g}\mathbf{\right)} \end{gathered}$$

The Reaction quotient is the ratio of reactants and product concentrations. It gives the relative amount of the substance present in the mixture at a constant temperature at a given time.

The balanced chemical equation for the given reaction is shown below.

$\mathbf{2}{\mathbf{NO}}_{\mathbf{2}}\mathbf{CI}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{}\mathbf{𝆏}\mathbf{}\mathbf{}\mathbf{}\mathbf{2}{\mathbf{NO}}_{\mathbf{2}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{+}{\mathbf{CI}}_{\mathbf{2}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}$

The reaction quotient for the given reaction is as shown below.

$\mathit{Q}\mathbf{=}\frac{{\mathbf{\left[}{\mathbf{NO}}_{\mathbf{2}}\mathbf{\right]}}^{\mathbf{2}}\mathbf{\left[}{\mathbf{CI}}_{\mathbf{2}}\mathbf{\right]}}{{\mathbf{\left[}{\mathbf{NO}}_{\mathbf{2}}\mathbf{CI}\mathbf{\right]}}^{\mathbf{2}}}$

The reaction quotient can be written only from the balanced chemical equations. Since it involves the stochiometry of the substances present in the reactions.

The balanced chemical equation for the given reaction is shown below.

$\mathbf{2}{\mathbf{POCI}}_{\mathbf{3}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{}\mathbf{𝆏}\mathbf{}\mathbf{}\mathbf{2}{\mathbf{PCI}}_{\mathbf{3}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{+}{\mathbf{O}}_{\mathbf{2}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}$

The reaction quotient for the given reaction is as shown below.

$\mathit{Q}\mathbf{=}\frac{{\mathbf{\left[}{\mathbf{PCI}}_{\mathbf{3}}\mathbf{\right]}}^{\mathbf{2}}\mathbf{\left[}{\mathbf{O}}_{\mathbf{2}}\mathbf{\right]}}{{\mathbf{\left[}{\mathbf{POCI}}_{\mathbf{3}}\mathbf{\right]}}^{\mathbf{2}}}$

The reaction quotient can be written only from the balanced chemical equations. Since it involves the stochiometry of the substances present in the reactions.

The balanced chemical equation for the given reaction is shown below.

$\mathbf{}\mathbf{4}{\mathbf{NH}}_{\mathbf{3}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{+}\mathbf{3}{\mathbf{O}}_{\mathbf{2}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{}\mathbf{𝆏}\mathbf{}\mathbf{}\mathbf{2}{\mathbf{N}}_{\mathbf{2}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{+}\mathbf{6}{\mathbf{H}}_{\mathbf{2}}\mathbf{O}\mathbf{\left(}\mathbf{g}\mathbf{\right)}$

The reaction quotient for the given reaction is as shown below.

$\mathit{Q}\mathbf{=}\frac{{\mathbf{\left[}{\mathbf{N}}_{\mathbf{2}}\mathbf{\right]}}^{\mathbf{2}}{\mathbf{\left[}{\mathbf{H}}_{\mathbf{2}}\mathbf{O}\mathbf{\right]}}^{\mathbf{6}}}{{\mathbf{\left[}{\mathbf{NH}}_{\mathbf{3}}\mathbf{\right]}}^{\mathbf{4}}{\mathbf{\left[}{\mathbf{O}}_{\mathbf{2}}\mathbf{\right]}}^{\mathbf{3}}}$

The reaction quotient can be written only from the balanced chemical equations. Since it involves the stochiometry of the substances present in the reactions.