Em tham khảo nha:

\(\begin{array}{l}
a)\\
4Al + 3{O_2} \xrightarrow{t^0} 2A{l_2}{O_3}\\
A{l_2}{O_3} + 6HN{O_3} \to 2Al{(N{O_3})_3} + 3{H_2}O\\
Al{(N{O_3})_3} + 3NaOH \to Al{(OH)_3} + 3NaN{O_3}\\
2Al{(OH)_3} \xrightarrow{t^0} A{l_2}{O_3} + 3{H_2}O\\
2A{l_2}{O_3} \xrightarrow{dpnc} 4Al + 3{O_2}\\
2Al + 6HCl \to 2AlC{l_3} + 3{H_2}\\
b)\\
Fe + 2HCl \to FeC{l_2} + {H_2}\\
FeC{l_2} + 2NaOH \to Fe{(OH)_2} + 2NaCl\\
Fe{(OH)_2} \xrightarrow{t^0} FeO + {H_2}O\\
FeO + {H_2} \xrightarrow{t^0} Fe + {H_2}O\\
2Fe + 3C{l_2} \to 2FeC{l_3}\\
FeC{l_3} + 3AgN{O_3} \to Fe{(N{O_3})_3} + 3AgCl\\
2Fe{(N{O_3})_3} + 3N{a_2}C{O_3}+ 3{H_2}O\to 2Fe{(OH)_3} + 6NaN{O_3}+3C{O_2}\\
c)\\
2Mg + {O_2} \xrightarrow{t^0} 2MgO\\
MgO + 2HCl \to MgC{l_2} + {H_2}O\\
MgC{l_2} + 2NaOH \to Mg{(OH)_2} + 2NaCl\\
Mg{(OH)_2} + {H_2}S{O_4} \to MgS{O_4} + 2{H_2}O\\
MgS{O_4} + BaC{l_2} \to BaS{O_4} + MgC{l_2}\\
MgC{l_2} + 2AgN{O_3} \to Mg{(N{O_3})_2} + 2AgCl\\
Mg{(N{O_3})_2} + N{a_2}C{O_3} \to MgC{O_3} + 2NaN{O_3}\\
d)\\
Cu + C{l_2} \to CuC{l_2}\\
CuC{l_2} + 2NaOH \to Cu{(OH)_2} + 2NaCl\\
Cu{(OH)_2} \xrightarrow{t^0} CuO + {H_2}O\\
CuO + {H_2}S{O_4} \to CuS{O_4} + {H_2}O\\
CuS{O_4} + BaC{l_2} \to CuC{l_2} + BaS{O_4}\\
Cu{(N{O_3})_2} + Mg \to Mg{(N{O_3})_2} + Cu\\
2Cu + {O_2} \xrightarrow{t^0} 2CuO
\end{array}\)