Đáp án:
Em tham khảo nha
Giải thích các bước giải:
\(\begin{array}{l}
1.1)\\
2{H_2}S + S{O_2} \to 3S + 2{H_2}O\\
S + {O_2} \to S{O_2}\\
S{O_2} + B{r_2} + 2{H_2}O \to {H_2}S{O_4} + 2HBr\\
2.1)\\
2{H_2}S + S{O_2} \to 3S + 2{H_2}O\\
S + {O_2} \xrightarrow{t^0} S{O_2}\\
S{O_2} + B{r_2} + 2{H_2}O \to {H_2}S{O_4} + 2HBr\\
N{a_2}S{O_3} + {H_2}S{O_4} \to N{a_2}S{O_4} + S{O_2} + {H_2}O\\
3.1)\\
N{a_2}S{O_3} + {H_2}S{O_4} \to N{a_2}S{O_4} + S{O_2} + {H_2}O\\
2{H_2}S + S{O_2} \to 3S + 2{H_2}O\\
Fe + S \xrightarrow{t^0} FeS\\
FeS + 2HCl \to FeC{l_2} + {H_2}S\\
4.1)\\
N{a_2}S{O_3} + {H_2}S{O_4} \to N{a_2}S{O_4} + S{O_2} + {H_2}O\\
2{H_2}S + S{O_2} \to 3S + 2{H_2}O\\
S + {H_2} \to {H_2}S\\
2{H_2}S + 3{O_2} \xrightarrow{t^0} 2{H_2}O + 2S{O_2}
\end{array}\)
