3VD oxit axit: SO2, SO3, CO2 (P2O5,N2O5, SiO2)
3 VD về oxit bazo : MgO, FeO, Fe2O3, CaO, BaO, ...
4 VD axit: H2SiO3, HCN, HCl, HCOOH, CH3COOH, H2SO4, HNO3, H3PO4, H2CO3,...
5 VD muối: NaHCO3, CaCO3, MgCl2, Na3PO4, Zn3P2, CuSO4, NaCl,..
5 VD bazo: Ca(OH)2, NaOH, Fe(OH)2, Fe(OH)3, Mg(OH)2, KOH, Al(OH)3, Zn(OH)2,...
1) SO2: lưu huỳnh dioxit , SO3: lưu huỳnh trioxit , CO2 : cacbon dioxit
2) CaO: canxi oxit , Na2O : natri oxit , FeO : Sắt II) oxit
3) H2SO4 : axit sunfuric , HCl: axit clohidric , HNO3 : axit nitric , H3PO4 : axit photphoric
4) NaCl : Natri clorua , K2CO3 : kali cacbonat , Ba(NO3)2: bari nitrat , FeSO4 : Sắt (II) sunfat , Ca3(PO4)2 : canxi photphat
5) Ba(OH)2: bari hidroxit , NaOH : Natri hidroxit , KOH : kali hidroxit , Fe(OH)2 : Sắt (II) hidroxit , Ca(OH)2 : Canxi hidroxit