Em tham khảo nha :

\(\begin{array}{l}
{K_2}O + {H_2}S{O_4} \to {K_2}S{O_4} + {H_2}O\\
F{e_2}{O_3} + 3{H_2}S{O_4} \to F{e_2}{(S{O_4})_3} + 3{H_2}O\\
A{l_2}{O_3} + 3{H_2}S{O_4} \to A{l_2}{(S{O_4})_3} + 3{H_2}O\\
Fe{(OH)_2} + {H_2}S{O_4} \to FeS{O_4} + 2{H_2}O\\
2NaOH + {H_2}S{O_4} \to N{a_2}S{O_4} + 2{H_2}O\\
2Fe{(OH)_3} + 3{H_2}S{O_4} \to F{e_2}{(S{O_4})_3} + 6{H_2}O\\
2Al{(OH)_3} + 3{H_2}S{O_4} \to A{l_2}{(S{O_4})_3} + 6{H_2}O\\
BaC{l_2} + {H_2}S{O_4} \to BaS{O_4} + 2HCl\\
4Fe{(OH)_2} + 2{H_2}O + {O_2} \to 4Fe{(OH)_3}\\
4Fe{(OH)_2} + {O_2} \to 2F{e_2}{O_3} + 4{H_2}O\\
2NaHC{O_3} \to N{a_2}C{O_3} + C{O_2} + {H_2}O\\
2KHS{O_3} \to {K_2}S{O_3} + S{O_2} + {H_2}O\\
N{a_2}C{O_3} + 2HCl \to 2NaCl + C{O_2} + {H_2}O\\
MgC{O_3} + 2HCl \to MgC{l_2} + C{O_2} + {H_2}O\\
N{a_2}S + 2HCl \to 2NaCl + {H_2}S\\
2NaHC{O_3} + {H_2}S{O_4} \to N{a_2}S{O_4} + 2{H_2}O + 2C{O_2}\\
2NaHS + {H_2}S{O_4} \to N{a_2}S{O_4} + 2{H_2}S\\
Ca{(HC{O_3})_2} + 2HCl \to CaC{l_2} + 2C{O_2} + 2{H_2}O\\
2KCl{O_3} \to 2KCl + 3{O_2}\\
2KMn{O_4} \to {K_2}Mn{O_4} + Mn{O_2} + {O_2}\\
2{H_2} + {O_2} \to 2{H_2}O\\
2{H_2}O \to 2{H_2} + {O_2}\\
2NaCl + 2{H_2}O \to C{l_2} + {H_2} + 2NaOH
\end{array}\)

K2O+H2SO4→K2SO4+H2O

Fe2O3+3H2SO4→Fe2(SO4)3+3H2O

Al2O3+3H2SO4→Al2(SO4)3+3H2O
Fe(OH)2+H2SO4→FeSO4+2H2O
2Al(OH)3+3H2SO4→Al2(SO4)3+6H2O

BaCl2+H2SO4→BaSO4+2HCl

4Fe(OH)2+2H2O+O2→4Fe(OH)3

4Fe(OH)2+O2→2Fe2O3+4H2O

2NaHCO3→Na2CO3+H2O+CO2

2KHSO3→K2SO3+SO2+H2O

Na2CO3+2HCl→2NaCl+H2O+CO2

MgCO3+2HCl→MgCl2+H2O+CO2

Na2S+2HCl→2NaCl+H2S

2NaHCO3+H2SO4→Na2SO4+2H2O+CO2

2NaHS+H2SO4→Na2SO4+2H2S

Ca(HCO3)2+2HCl→CaCl2+2H2O+2CO2

2KClO3→2KCl+3O2

2KMnO4→K2MnO4+MnO2+O2

2H2+O2→2H2O

2H2O→2H2+O2

2NaCl+H2O→2NaOH+H2+Cl2