Em tham khảo nha:
\(\begin{array}{l}
a)\\
(1)\,{H_2} + C{l_2} \to 2HCl\\
(2)\,N{a_2}C{O_3} + 2HCl \to 2NaCl + C{O_2} + {H_2}O\\
(3)\,2NaOH + C{O_2} \to N{a_2}C{O_3} + {H_2}O\\
(4)\,N{a_2}C{O_3} + C{O_2} + {H_2}O \to 2NaHC{O_3}\\
(5)\,NaHC{O_3} + HCl \to NaCl + C{O_2} + {H_2}O\\
b)\\
(1)4Fe{S_2} + 11{O_2} \xrightarrow{t^0} 2F{e_2}{O_3} + 8S{O_2}\\
(2)2S{O_2} + {O_2} \xrightarrow{t^0,V_2O_5} 2S{O_3}\\
(3)\,S{O_3} + {H_2}O \to {H_2}S{O_4}\\
(4)\,2Al + 3{H_2}S{O_4} \to A{l_2}{(S{O_4})_3} + 3{H_2}\\
c)\\
(1)\,2NaOH + C{O_2} \to N{a_2}C{O_3} + {H_2}O\\
(2)\,N{a_2}C{O_3} + C{O_2} + {H_2}O \to 2NaHC{O_3}\\
(3)\,NaHC{O_3} + HCl \to NaCl + C{O_2} + {H_2}O\\
(4)C{O_2} + Ba{(OH)_2} \to BaC{O_3} + {H_2}O\\
(5)\,BaC{O_3} + 2HCl \to BaC{l_2} + C{O_2} + {H_2}O\\
(6)\,C{O_2} + Ca{(OH)_2} \to CaC{O_3} + {H_2}O\\
(7)\,CaC{O_3} + 2HCl \to CaC{l_2} + C{O_2} + {H_2}O\\
d)\\
(1)\,Mg + S \to MgS\\
(2)\,MgS + 2HCl \to MgC{l_2} + {H_2}S\\
(3)\,2{H_2}S + S{O_2} \to 3S + 2{H_2}O\\
(4)\,S + {O_2} \xrightarrow{t^0} S{O_2}\\
(5)2S{O_2} + {O_2} \xrightarrow{t^0,V_2O_5} 2S{O_3}\\
(6)\,S{O_3} + {H_2}O \to {H_2}S{O_4}\\
(7)\,Mg + {H_2}S{O_4} \to MgS{O_4} + {H_2}
\end{array}\)
