1. Is a compound that is produced when hydrogen ion from acid is replaced by metal ion or ammonium ion, NH 4 + . SALT

2. MEANING OF SALT How can we identify a salt ? ACID SALT ACID SALT NH 4 OH MgO SALT? NH4 Cl Mg SO 4 H Cl H 2 SO 4

3. SALT SOLUBILITY SOLUBILITY An ability of a compound to dissolve in water Is important to choose suitable method to prepared a salt Salt solubility

4. All ammonium, sodium and potassium salts are soluble All nitrate salts are soluble All chloride salts are soluble except silver chloride, lead (II) chloride and mercury chloride All sulphate salts are soluble except calcium sulphate, lead (II) sulphate and barium sulphate All carbonate salts are insoluble except alkali metal carbonates (such as sodium carbonate and potassium carbonate)

5. SOLUBILITY An ability of a compound to dissolve in water Example of salt Water in beaker

6. KIND OF SALTS Soluble salt Insoluble salt Salt that undissolve in water (at room temperature) We must know whether the salt is Soluble or Insoluble Salt that dissolve in water (at room temperature) Before preparing salt: Have different method to prepare salt

7. EXAMPLE AgCl PbCl 2 NaOH NH 4 OH PbSO 4 PbCrO 4 PbI 2 BaSO 4 Soluble salts Insoluble salts