MgCl2+2KOH->Mg(OH)2+2KCl

Cu(OH)2+2HCl->CuCl2+H2O

Cu(OH)2+H2SO4->CuSO4+2H2O

FeO+2HCl->FeCl2+H2O

Fe2O3+3H2SO4 ->Fe2(SO4)3+3H2O

Cu(NO3)2+2NaOH->Cu(OH)2+2NaNO3

4P+5O2--t0-->2P2O5

N2+O2-tia chớp--> 2NO

2NO+O2--t0--> 2NO2

4NO2+O2+2H2O->4HNO3

2SO2+O2--t0,V2O5-->2SO3

N2O5+H2O-->2HNO3

Al2(SO4)3+6AgNO3->2Al(NO3)3+3Ag2SO4

CaO+CO2-->CaCO3

Em tham khảo nha :

\(\begin{array}{l}
MgC{l_2} + 2KOH \to Mg{(OH)_2} + 2KCl\\
Cu{(OH)_2} + 2HCl \to CuC{l_2} + 2{H_2}O\\
Cu{(OH)_2} + {H_2}S{O_4} \to CuS{O_4} + 2{H_2}O\\
FeO + 2HCl \to FeC{l_2} + {H_2}O\\
F{e_2}{O_3} + 3{H_2}S{O_4} \to F{e_2}{(S{O_4})_3} + 3{H_2}O\\
Cu{(N{O_3})_2} + 2NaOH \to Cu{(OH)_2} + 2NaN{O_3}\\
4P + 5{O_2} \to 2{P_2}{O_5}\\
{N_2} + {O_2} \to 2NO\\
2NO + {O_2} \to 2N{O_2}\\
4NO + 3{O_2} + 2{H_2}O \to 4HN{O_3}\\
2S{O_2} + {O_2} \to 2S{O_3}\\
{N_2}{O_5} + {H_2}O \to 2HN{O_3}\\
A{l_2}{(S{O_4})_3} + 6AgN{O_3} \to 3A{g_2}S{O_4} + 2Al{(N{O_3})_3}\\
A{l_2}{(S{O_4})_3} + 6NaOH \to 3N{a_2}S{O_4} + 2Al{(OH)_3}\\
CaO + C{O_2} \to CaC{O_3}
\end{array}\)