\(2Na+2H_2O\rightarrow2NaOH+H_2\uparrow\)
\(Ba\left(OH\right)_2+Na_2SO_4\rightarrow BaSO_4\downarrow+2NaOH\)
\(2H_2O+2NaCl\xrightarrow[cmn]{đpdd}2NaOH+Cl_2\uparrow+H_2\uparrow\)
\(Ca\left(OH\right)_2+Na_2CO_3\rightarrow CaCO_3\downarrow+2NaOH\)
\(Na_2CO_3+Ba\left(OH\right)_2\rightarrow BaCO_3\downarrow+2NaOH\)
\(Mg\left(OH\right)_2+2NaAlO_2\underrightarrow{t^\circ}2NaOH+Mg\left(AlO_2\right)_2\downarrow\)
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