The compound CaCO_(3) has the name. calcium carbonate copper carboxylate copper sulfate calcium oxide

Naming ionic compounds involves stating the cation (which is usually the metal) first, followed by the anion. For the ionic compound , we have calcium ions (referred to as Ca) as the cations and carbonate ions (CO3) as the anions. The name of the involved element, in this case, calcium, remains unchanged when naming the ionic compound. However, the 'carbon and oxygen' part forms the carbonate ion common in chemistry, hence referred to as 'carbonate'. Therefore, the correct name for this compound is 'calcium carbonate'. It's not copper sulfate, copper carboxylate, or calcium oxide.