Question

Which of the following naming rules would apply to CaCO 3? Question 3 options: polyatomic cation + nonmetal anion(–ide) metal + polyatomic anion metal cation + (roman numeral valence) + nonmetal anion(–ide) metal cation + nonmetal anion(–ide)

Answer 1

Answer: The correct option is Metal + polyatomic anion.The name will be 'Calcium carbonate'.

Solution:

Salts name is made up two parts:

1. First part is name of cation here present in salt.
2. Second part is name of polyatomic anion like : $Cl^-\text{is chloride},SO_4\text{is sulphate}$ etc.

So,the name of $CaCO_3$ is calcium carbonate.Here,metal ion in the salt is calcium metal and the anion is polyatomic carbonate ion.

Answer 2

Answer:

Metal + polyatomic anion.The name will be 'Calcium carbonate'.

Explanation: