Write down the names of compounds represented by the following formulae. Also show the ions present in them :
(i) `Al_(2)(SO_(4))_(3)` , (ii) ` CaCl_(2)` , (iii) `K_(2)SO_(4)` , (iv) ` KNO_(3)` , (v) `CaCO_(3)`

Explanation

(i) `Al_(2)(SO_(4))_(3)` is aluminimum sulphate, Ions present are : `Al^(3+)` and `SO_(4^(2-))`
(ii) `CaCl_(2)` is calcium chloride. Ions present are : `Ca^(2+)` and `Cl^(-)`
(iii) `K_(2)SO_(4)` is potassium sulphate . Ions present are : `K^(+)` and `SO_(4^(2-))`
(iv) `KNO_(3)` is potassium nitrate. Ions present are : `K^(+)` and `NO_(3^(-))`
(v) `CaCO_(3)` is calcium carbonate. Ions present are : `Ca^(2+)` and `CO_(3^(2-))`