Đáp án:
Giải thích các bước giải:
1)
a) (1), (3)
b) (2)
c) (7)
d) (4), (5), (9), (10)
e) (6)
f) (8)
g) (4)
2)
(1) $S + {H_2}\xrightarrow{{{t^o}}}{H_2}S$
(2) ${H_2}S + 2NaOH \to N{a_2}S + 2{H_2}O$
(3) $N{a_2}S + 2HCl \to 2NaCl + {H_2}S$
(4) $2{H_2}S + 3{O_2}\xrightarrow{{{t^o}}}2S{O_2} + 2{H_2}O$
(5) $S + 3{O_2}\xrightarrow{{{t^o}}}S{O_2}$
(6) $S{O_2} + 2NaOH \to N{a_2}S{O_3} + {H_2}O$
(7) $N{a_2}S{O_3} + 2HCl \to 2NaCl + S{O_2} + {H_2}O$
(8) $S{O_2} + C{l_2} + 2{H_2}O \to 2HCl + {H_2}S{O_4}$
3)
$Fe + S\xrightarrow{{{t^o}}}FeS$
$FeS + 2HCl \to FeC{l_2} + {H_2}S$
$Fe + 2HCl \to FeC{l_2} + {H_2}$
${H_2}S + Pb{(N{O_3})_2} \to PbS \downarrow + 2HN{O_3}$
