2 NaOH + H2SO4 = Na2SO4 + 2 H2O
Al(OH)3 + 3 HCl = AlCl3 + 3 H2O
Ca(OH)2+NaOH = X
6 KOH + P2O5 = 2 K3PO4 + 3 H2O
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
Ca(OH)2 + K2CO3 = 2 KOH + CaCO3
2 NaOH + BaCl2 = Ba(OH)2 + 2 NaCl
Ca3(PO4)2 + 6 KOH = 3 Ca(OH)2 + 2 K3PO4