Cu = Copper (I) , Cu = Copper (II) , Fe = Iron (III), Fe = Iron (II), Hg = Mercury (I), Hg = Mercury (II), Pb = Lead (II), Pb = Lead (IV), Sn = Tin (II), Sn = Tin (IV), Ni = Nickel (III), Ni = Nickel (II),

6-1 Matching: Roman Numerals Tell You the Charge on the Metal

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