Complete the chemical name of the compound Col3. Use the periodic table to help form your answer.
Type the correct answer in the box. Spell all words correctly. Use parentheses where appropriate.

Complete the chemical name of the compound Col3 Use the periodic table to help form your answer Type the correct answer in the box Spell all words correctly Use class=

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Answer:

Cobalt (III)

Explanation:

Since there is a 3 by iodine and cobalt is a transition metal it means cobalt has a 3 charge and we have to write it in roman numerals