I believe the correct answer from the choices listed above is the first option. The naming rule that would apply to CaCO3 is should be <span>metal cation + nonmetal anion(ide). The naming would be written as Calcium Carbonate. Hope this answers the question.</span>
Metal (Ca) Polyatomic anion (CO3). You do not need to use the roman numeral because Ca is in group 1. The answer is metal + polyatomic or Calcium Carbonate
