Em tham khảo nha:
\(\begin{array}{l}
1)\\
S + {O_2} \xrightarrow{t^0} S{O_2}\\
S{O_2} + NaOH \to NaHS{O_3}\\
NaHS{O_3} + NaOH \to N{a_2}S{O_3} + {H_2}O\\
N{a_2}S{O_3} + 2HCl \to 2NaCl + S{O_2} + {H_2}O\\
2S{O_2} + {O_2} \xrightarrow{t^0,V_2O_5} 2S{O_3}\\
S{O_3} + {H_2}O \to {H_2}S{O_4}\\
2)\\
S + {O_2} \xrightarrow{t^0} S{O_2}\\
S{O_2} + NaOH \to NaHS{O_3}\\
NaHS{O_3} + NaOH \to N{a_2}S{O_3} + {H_2}O\\
N{a_2}S{O_3} + 2HN{O_3} \to 2NaN{O_3} + S{O_2} + {H_2}O\\
2S{O_2} + {O_2}\xrightarrow{t^0,V_2O_5} 2S{O_3}\\
S{O_3} + {H_2}O \to {H_2}S{O_4}\\
Cu + 2{H_2}S{O_4} \to CuS{O_4} + S{O_2} + 2{H_2}O
\end{array}\)