Em tham khảo nha:
\(\begin{array}{l}
a)\\
3Cu + 8{H^ + } + 2N{O_3}^ - \to 3C{u^{2 + }} + 2NO + 4{H_2}O\\
b)\\
2F{e^{3 + }} + 3C{O_3}^{2 - } \to 2F{e_2}{(C{O_3})_3}\\
c)\\
6F{e^{2 + }} + {K_2}C{r_2}{O_7} + 14{H^ + } \to 6F{e^{3 + }} + 2{K^ + } + 2C{r^{3 + }} + 7{H_2}O\\
d)\\
Al{O_2}^ - + {H^ + } + {H_2}O \to Al{(OH)_3}
\end{array}\)