Multiple Choice
What are the charges on the copper and phosphide ions, respectively, in copper(II) phosphide?
3. Chemical Reactions
Naming Ionic Compounds
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following is the correct IUPAC name for Pb(NO3)2?
A
Lead(IV) nitrate
B
Lead dinitrate
C
Plumbous nitrate
D
Lead(II) nitrate
Verified step by step guidance1
Identify the cation and anion in the compound Pb(NO3)2. Pb is the cation (lead), and NO3 is the nitrate anion.
Determine the charge on the nitrate ion. Nitrate (NO3) has a charge of -1.
Since there are two nitrate ions, the total negative charge is 2 × (-1) = -2. To balance this, the lead cation must have a charge of +2.
Use the IUPAC naming convention for transition metals or metals with variable oxidation states by indicating the charge of the metal in Roman numerals in parentheses. Since lead has a +2 charge here, it is named Lead(II).
Combine the cation name with the anion name to form the full name: Lead(II) nitrate.
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