1)\(3F{e_x}{O_y} + (12x - 2y)HN{O_3}\xrightarrow{{}}3xFe{(N{O_3})_3} + (3x - 2y)NO + (6x - y){H_2}O\)
2)
\(2F{e_x}{O_y} + (6x - 2y){H_2}S{O_4}\xrightarrow{{}}xF{e_2}{(S{O_4})_3} + (3x - 2y)S{O_2} + (6x - 2y){H_2}O\)
3)
\(8M + 10nHN{O_3}\xrightarrow{{}}8M{(N{O_3})_n} + nN{H_4}N{O_3} + 5n{H_2}O\)
4)
\(3M + 4nHN{O_3}\xrightarrow{{}}3M{(N{O_3})_n} + nNO + 2n{H_2}O\)
5)
\((5x - 2y)F{e_3}{O_4} + (46x - 18y)HN{O_3}\xrightarrow{{}}(15x - 6y)Fe{(N{O_3})_3} + {N_x}{O_y} + (23x - 9y){H_2}O\)
6)
\(nF{e_x}{O_y} + (ny - xm)CO\xrightarrow{{{t^o}}}xF{e_n}{O_m} + (ny - xm)C{O_2}\)
7)
\(3{M_x}{O_y} + (4nx - 2y)HN{O_3}\xrightarrow{{}}3xM{(N{O_3})_n} + (nx - 2y)NO + (2nx - y){H_2}O\)
