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1. HCl+ NaOH -> NaCl + H2O
2. H2SO4 + Ba(OH)2 -> BaSO4+2H2O
3. 2CH3COONa + H2SO4 -> 2CH3COOH + Na2SO4
4. Cu(OH)2 + 2HNO3 ->Cu(NO3)2 + 2H2O
5. 2Fe(OH)3 + 6HCI ->2FeCl3 + 3H2O
6. Al(OH)3 + 3HCI -> ALCl3 + H2O
7. Al(OH)3 + NaOH -> NaAlO2 + 2H2O
8. Zn(OH)2 + H2SO4 -> ZnSO4 +2H2O
9. Zn(OH)2+2NaOH -> Na2ZnO2+2H2O
- Phản ứng trung hòa (giữa axít và bazơ) tạo thành muối và nước.
- Điều kiện để xảy ra phản ứng trao đổi ion trong dung dịch chất điện li: Sản phẩm tạo thành sau phản ứng phải có:
+ Chất kết tủa.
+ Chất khí.
+ Chất điện li yếu (H2O, CH3COOH,...).
- Bảng tính tan: Nắm được tính tan khi các ion kết hợp với nhau. Ví dụ:
+ Một số kết tủa hay gặp: BaSO4, BaCO3, BaSO3, CaCO3, AgCl, PbS, FeS, Fe(OH)2, Fe(OH)3, ....
+ Một số chất khí hay gặp: CO2 (khi CO32- hoặc HCO3- kết hợp với H+), SO2 (khi SO32- hoặc HSO3- kết hợp với H+), H2S (khi S2- hoặc HS- kết hợp với H+),...
+ Một số muối tan: muối của Na+, K+, NH4+, Li+, NO3-, CH3COO-,...
     
 
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