Multiple Choice
Which of the following is the correct chemical formula for ammonium sulfite?
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3. Chemical Reactions
Naming Ionic Compounds
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What is the systematic name of PbO?
A
Plumbic oxide
B
Lead monoxide
C
Lead(IV) oxide
D
Lead(II) oxide
Verified step by step guidance1
Identify the elements in the compound PbO: Pb is lead, and O is oxygen.
Determine the oxidation state of lead (Pb) in PbO. Oxygen typically has an oxidation state of -2.
Since the compound is neutral, the oxidation state of Pb must balance the -2 from oxygen, so Pb has an oxidation state of +2.
Use the systematic nomenclature for ionic compounds with transition metals: name the metal with its oxidation state in Roman numerals in parentheses, followed by the nonmetal with the suffix '-ide'.
Therefore, the systematic name of PbO is 'Lead(II) oxide', indicating lead has a +2 oxidation state.
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