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Which of the following naming rules would apply to CaCO3?

metal cation + nonmetal anion(ide)

metal cation + (roman numeral valence) + nonmetal anion(ide)

polyatomic cation + nonmetal anion(ide)

metal + polyatomic anion

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taskmasters
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 metal cation + nonmetal anion(ide). The naming would be written as Calcium Carbonate. Hope this answers the question.

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