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Final answer:The IUPAC name for Co(ClO)2 is Cobalt(II) hypochlorite, with 'cobalt' denoting the metal and 'hypochlorite' indicating the presence of the ClO anion.Explanation:The correct IUPAC name for Co(ClO)2 is Cobalt(II) hypochlorite. In this compound, Co stands for cobalt with an oxidation state of +2, and ClO represents the hypochlorite ion. When naming coordination compounds, the cation is named first followed by the anion. As hypochlorite is the anion of hypochlorous acid (HOCl), it takes the name hypochlorite with the prefix indicating the number of ions. Since there are two hypochlorite ions, we do not need to specify the number (as it is implied by the chemical formula). The oxidation state of cobalt is indicated in parentheses as II after the element's name....