强酸:HCl,HNO3,H2SO4,HClO3,HClO4,HI强碱:NaOH,KOH,Ba(OH)2,Ca(OH)2弱酸:HClO,CH3COOH,H2CO3,H3PO4,H2SO3,HF,H2S,HCOOH,HNO2弱碱:Cu(OH)2,Fe(OH)2,Fe(OH)3,NH3·H2O,Al(OH)3(一般看为弱碱,但也有弱酸的性质)