\(2Na+2H_2O\rightarrow2NaOH+H_2\uparrow\)
\(2NaOH+CO_2\rightarrow Na_2CO_3+H_2O\)
\(Na_2CO_3+H_2SO_4\rightarrow Na_2SO_4+CO_2\uparrow+H_2O\)
\(Na_2SO_4+Ba\left(OH\right)_2\rightarrow2NaOH+BaSO_4\downarrow\)
\(6NaOH+Fe_2\left(SO_4\right)_3\rightarrow2Fe\left(OH\right)_3\downarrow+3Na_2SO_4\)
\(Fe\left(OH\right)_3+3HCl\rightarrow FeCl_3+3H_2O\)
\(2FeCl_3+Fe\rightarrow\left(t^o\right)3FeCl_2\)
\(FeCl_2+KOH\rightarrow Fe\left(OH\right)_2\downarrow+2KCl\)
\(Fe\left(OH\right)_2\xrightarrow[chân.không]{t^o}FeO+H_2O\)
\(FeO+H_2\rightarrow\left(t^o\right)Fe+H_2O\)
\(Fe+2HCl\rightarrow FeCl_2+H_2\)
\(2H_2+O_2\rightarrow\left(t^o\right)2H_2O\)
\(H_2O+SO_3\rightarrow H_2SO_4\)
\(2KOH+H_2SO_4\rightarrow K_2SO_4+2H_2O\)
\(K_2SO_4+BaCl_2\rightarrow2KCl+BaSO_4\downarrow\)
\(2KCl\rightarrow\left(đpnc\right)2K+Cl_2\uparrow\)
\(2Na+Cl_2\rightarrow\left(t^o\right)2NaCl\)
\(2NaCl\rightarrow\left(đpnc\right)2Na+Cl_2\uparrow\)
(1) \(2Na+2H_2O\rightarrow2NaOH+H_2\uparrow\)
(2) \(2NaOH+CO_2\rightarrow Na_2CO_3+H_2O\)
(3) \(Na_2CO_3+H_2SO_4\rightarrow Na_2SO_4+H_2O+CO_2\uparrow\)
(4) \(Na_2SO_4+Ba\left(OH\right)_2\rightarrow BaSO_4\downarrow+2NaOH\)
(5) \(3NaOH+FeCl_3\rightarrow Fe\left(OH\right)_3\downarrow+3NaCl\)
(6) \(Fe\left(OH\right)_3+3HCl\rightarrow FeCl_3+3H_2O\)
(7) \(2FeCl_3+Fe\xrightarrow[]{t^\circ}3FeCl_2\)
(8) \(FeCl_2+2LiOH\rightarrow Fe\left(OH\right)_2\downarrow+2LiCl\)
(9) \(Fe\left(OH\right)_2\xrightarrow[]{t^{\circ}}FeO+H_2O\uparrow\)
(10) \(4FeO\xrightarrow[]{t^\circ}Fe+Fe_3O_4\)
(11) \(Fe+H_2SO_4\text{ (loãng)}\rightarrow FeSO_4+H_2\uparrow\)
(12) \(H_2+O_3\rightarrow H_2O+O_2\)
(13) \(H_2O+SO_3\rightarrow H_2SO_4\)
(14) \(H_2SO_4\text{ (đặc, nóng)}+2KCl\rightarrow K_2SO_4+2HCl\uparrow\)
(15) \(K_2SO_4+BaCl_2\rightarrow BaSO_4\downarrow+2KCl\)
(16) \(2KCl+2H_2O\xrightarrow[cmn]{đpdd}2KOH+H_2\uparrow+Cl_2\uparrow\)
(17) \(Cl_2+2Na\xrightarrow[]{t^\circ}2NaCl\)
(18) \(2NaCl\xrightarrow[]{đpnc}2Na+Cl_2\uparrow\)
