Name the following compounds. Also write the symbols/formulae of the ions present in them :
(a) `CuSO_(4)` , (b) ` (NH_(4))_(2)SO_(4)` , (c) `Na_(2)O` , (d) `Na_(2)CO_(3)` , (e) `CaCl_(2)`

Explanation

(a) Copper sulphate ; `Cu^(2+)` and `SO_(4^(2-))` , (b) Ammonium sulphate ; `NH_(4^(+))` and `SO_(4^(2-))` (c ) Sodium oxide ; `Na^(+)` and `O^(2-)` (d) Sodium carbonate ; `Na^(+)` and `CO_(2^(3-))` (e ) Calcium chloride ; `Ca^(2+)` and `Cl^(-)`