Em tham khảo nha:
\(\begin{array}{l}
1)\\
a)\\
4Fe{S_2} + 11{O_2} \xrightarrow{t^0} 2F{e_2}{O_3} + 8S{O_2}\\
2S{O_2} + {O_2} \xrightarrow{t^0,V_2O_5} 2S{O_3}\\
S{O_3} + {H_2}O \to {H_2}S{O_4}\\
CuO + {H_2}S{O_4} \to CuS{O_4} + {H_2}O\\
CuS{O_4} + 2NaOH \to Cu{(OH)_2} + N{a_2}S{O_4}\\
N{a_2}S{O_4} + Ba{(OH)_2} \to 2NaOH + BaS{O_4}\\
NaOH + Al{(OH)_3} \to NaAl{O_2} + 2{H_2}O\\
b)\\
4Na + {O_2} \xrightarrow{t^0} 2N{a_2}O\\
N{a_2}O + {H_2}S{O_4} \to N{a_2}S{O_4} + {H_2}O\\
N{a_2}S{O_4} + BaC{l_2} \to 2NaCl + BaS{O_4}\\
2NaCl + 2{H_2}O \to 2NaOH + C{l_2} + {H_2}\\
2NaOH + CuS{O_4} \to Cu{(OH)_2} + N{a_2}S{O_4}\\
Cu{(OH)_2} \xrightarrow{t^0} CuO + {H_2}O\\
CuO + 2HCl \to CuC{l_2} + {H_2}O\\
CuC{l_2} + 2AgN{O_3} \to Cu{(N{O_3})_2} + 2AgCl\\
Fe + Cu{(N{O_3})_2} \to Fe{(N{O_3})_2} + Cu
\end{array}\)
