Question 2 (v)
Write down the names of compounds represented by the following formulae:
(v) CaCO3
(v) CaCO3 :
Ca is the symbol for calcium and CO3 is the symbol for carbonate ion. From the chemical formula, it is evident that calcium is the cation and carbonate is the anion. We know that the name of cation precedes the anion. So, the name of the given compound is "Calcium carbonate".