Đáp án:
Bạn tham khảo lời giải ở dưới nhé!!!
Giải thích các bước giải:
\(\begin{array}{l}
a,\\
Cu + \frac{1}{2}{O_2} \to CuO\\
CuO + 2HCl \to CuC{l_2} + {H_2}O\\
CuC{l_2} + 2NaOH \to Cu{(OH)_2} + 2NaCl\\
Cu{(OH)_2} \to CuO + {H_2}O\\
b,\\
CaC{O_3} \to CaO + C{O_2}\\
C{O_2} + NaOH \to NaHC{O_3}\\
NaHC{O_3} + NaOH \to N{a_2}C{O_3} + {H_2}O\\
N{a_2}C{O_3} + 2HCl \to 2NaCl + C{O_2} + {H_2}O\\
2NaCl + 2{H_2}O \to 2NaOH + C{l_2} + {H_2}\\
c,\\
S + {O_2} \to S{O_2}\\
S{O_2} + \frac{1}{2}{O_2} \to S{O_3}\\
S{O_3} + {H_2}O \to {H_2}S{O_4}\\
2Na + {H_2}S{O_4} \to N{a_2}S{O_4} + {H_2}\\
d,\\
4Al + 3{O_2} \to 2A{l_2}{O_3}\\
A{l_2}{O_3} + 3{H_2}S{O_4} \to A{l_2}{(S{O_4})_3} + 3{H_2}O\\
A{l_2}{(S{O_4})_3} + 6NaOH \to 2Al{(OH)_3} + 3N{a_2}S{O_4}\\
Al{(OH)_3} + 3HCl \to AlC{l_3} + 3{H_2}O\\
e,\\
2Fe + 3C{l_2} \to 2FeC{l_3}\\
2FeC{l_3} + Fe \to 3FeC{l_2}\\
FeC{l_2} + 2NaOH \to Fe{(OH)_2} + 2NaCl\\
Fe{(OH)_2} + {H_2}S{O_4} \to FeS{O_4} + 2{H_2}O\\
FeC{l_3} + 3NaOH \to Fe{(OH)_3} + 3NaCl\\
2Fe{(OH)_3} \to F{e_2}{O_3} + 3{H_2}O\\
F{e_2}{O_3} + 3{H_2}S{O_4} \to F{e_2}{(S{O_4})_3} + 3{H_2}O\\
F{e_2}{(S{O_4})_3} + 6NaOH \to 2Fe{(OH)_3} + 3N{a_2}S{O_4}\\
g,\\
2NaCl + 2{H_2}O \to 2NaOH + C{l_2} + {H_2}\\
NaOH + C{O_2} \to NaHC{O_3}\\
NaHC{O_3} + NaOH \to N{a_2}C{O_3} + {H_2}O\\
N{a_2}C{O_3} + CaC{l_2} \to CaC{O_3} + 2NaCl\\
CaC{O_3} + 2HCl \to CaC{l_2} + C{O_2} + {H_2}O\\
CaC{l_2} + 2AgN{O_3} \to Ca{(N{O_3})_2} + 2AgCl
\end{array}\)
