307036 \({\mkern 1mu} \begin{array}{*{20}{l}}
{{\rm{l}}\left( {{\rm{FeO}}{\mkern 1mu} \cdot {\mkern 1mu} {\rm{C}}{{\rm{r}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}} \right) + {\rm{m}}{\mkern 1mu} {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{C}}{{\rm{O}}_{\rm{3}}} + {\rm{n}}{{\rm{O}}_{\rm{2}}} \to }\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{x}}{\mkern 1mu} {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{Cr}}{{\rm{O}}_{\rm{4}}} + {\rm{y}}{\mkern 1mu} {\rm{F}}{{\rm{e}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}} + {\rm{z}}{\mkern 1mu} {\rm{C}}{{\rm{O}}_{\rm{2}}}}
\end{array}\)
l ,m ,n ,x ,y and z respectively are