Carbonate rocks contain the _____ ion as part of their chemical composition. A) CaO₃^2- B) CO₃^2- C) CaCO₃^2- D) limestone E) Carbonate rocks do not contain ions.

Question

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Carbonate rocks contain the carbonate ion (CO32-) as part of their chemical composition. Option B correctly represents the chemical formula for this ion. Option A is incorrect as it is a combination of calcium oxide and sulfate ions. Option C is incorrect as it combines the calcium ion with the carbonate and sulfate ions. Option D is not an ion or a chemical formula. Option E is also incorrect as carbonate rocks do contain ions.

Carbonate Rocks Contain the _____ Ion as Part of Their