What is the Roman Numeral? Naming Compounds with Transition Metals + Sn & Pb.

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Presentation transcript:

What is the Roman Numeral? Naming Compounds with Transition Metals + Sn & Pb

How do I figure out charge on cation? When naming ionic compounds with a transition metal or Sn & Pb, you must include a roman numeral in the name to indicate the positive charge on the cation. Examples: CuCl 2 = Copper (II) chloride Co(NO 3 ) 3 = Cobalt (III) nitrate

How do I figure out charge on cation? From the finished formula, you must work backwards to determine the positive charge. You also must know the negative charge on anion. Example: AuCl 3

Practice Problems: 1. Cr 2 O 3 2. Sn(C 2 H 3 O 2 ) 2 3. Cu 3 PO 4