Em tham khảo nha:
\(\begin{array}{l}
b)\\
2FeS + 3C{u_2}S + 24{H^ + } + 16N{O_3}^ - \to 16NO + 2F{e^{3 + }} + 6C{u^{2 + }} + 5S{O_4}^{2 - } + 12{H_2}O\\
1 \times |2FeS + 3C{u_2}S \to 2F{e^{3 + }} + 6C{u^{2 + }} + 5{S^{ + 6}} + 48e\\
16 \times |{N^{ + 5}} + 3e \to {N^{ + 2}}
\end{array}\)