a)
\(Fe + S\xrightarrow{{{t^o}}}FeS\)
\(Hg + S\xrightarrow{{}}HgS\)
\({H_2} + S\xrightarrow{{{t^o}}}{H_2}S\)
\(S + {O_2}\xrightarrow{{{t^o}}}S{O_2}\)
\(S + 3{F_2}\xrightarrow{{}}S{F_6}\)
b)
\(2{H_2}S + 3{O_2}\xrightarrow{{{t^o}}}2{H_2}O + 2S{O_2}\)
\(2{H_2}S + {O_2}\xrightarrow{{}}2S + 2{H_2}O\)
\(2{H_2}S + S{O_2}\xrightarrow{{{t^o}}}3S + 2{H_2}O\)
c)
\(S{O_2} + {H_2}O\overset {} \leftrightarrows {H_2}S{O_3}\)
\(S{O_2} + B{r_2} + 2{H_2}O\xrightarrow{{}}{H_2}S{O_4} + 2HBr\)
d)
\(Fe + {H_2}S{O_4}\xrightarrow{{}}FeS{O_4} + {H_2}\)
\(2Al + 3{H_2}S{O_4}\xrightarrow{{}}A{l_2}{(S{O_4})_3} + 3{H_2}\)
\(Cu\) không tác dụng
\(Ca{(OH)_2} + {H_2}S{O_4}\xrightarrow{{}}CaS{O_4} + 2{H_2}O\)
\(CaC{O_3} + {H_2}S{O_4}\xrightarrow{{}}CaS{O_4} + C{O_2} + {H_2}O\)
\(CuO + {H_2}S{O_4}\xrightarrow{{}}CuS{O_4} + {H_2}O\)
