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Which is the correct name for the compound COCO₃?

a. Carbon Oxygen Carbonate
b. Cobalt (II) Carbonate
c. Copper (II) Carbonate
d. Cobalt Carbonoxide

User Lancelot
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1 Answer

6 votes

Final answer:

The correct name for CoCO₃ is cobalt (II) carbonate, specifying the +2 charge of the cobalt ions in the compound.

Step-by-step explanation:

The correct name for the compound CoCO₃ is cobalt (II) carbonate. This compound is made up of cobalt ions and carbonate ions. The cobalt ion in this compound has a 2+ charge. Cobalt can have more than one possible charge, but since carbonate (CO₃⁻) has a 2⁻ charge, and there is only one cobalt ion for each carbonate ion, the cobalt must be in the +2 oxidation state. Therefore, the Roman numeral (II) is used in the name to indicate the charge of the cobalt ions.

User ClosureCowboy
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