Đáp án:
Giải thích các bước giải:
\(\eqalign{
& 2Zn + {O_2}\buildrel {{t^0}} \over
\longrightarrow 2ZnO \cr
& ZnO + 2HCl\buildrel {} \over
\longrightarrow ZnC{l_2} + {H_2}O \cr
& ZnC{l_2} + 2AgN{O_3}\buildrel {} \over
\longrightarrow Zn{(N{O_3})_2} + 2AgCl \downarrow \cr
& Zn{(N{O_3})_2} + 2NaOH\,du\buildrel {} \over
\longrightarrow Zn{(OH)_2} \downarrow + 2NaN{O_3} \cr
& Zn{(OH)_2} + {H_2}S{O_4}\buildrel {} \over
\longrightarrow ZnS{O_4} + 2{H_2}O \cr
& ZnS{O_4} + Mg\buildrel {} \over
\longrightarrow MgS{O_4} + Zn \cr} \)
