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Multiple Choice
What is the correct name for the ionic compound Al(NO3)3?
A
Aluminum nitrite
B
Aluminum nitrate
C
Aluminum(III) nitrate
D
Aluminum trinitrate
Verified step by step guidance
1
Identify the cation and anion in the compound Al(NO3)3. The cation is Aluminum (Al) and the anion is the nitrate ion (NO3).
Determine the charge of the cation and anion. Aluminum typically forms a +3 charge (Al^{3+}), and the nitrate ion has a -1 charge (NO_3^{-}).
Recognize that the formula Al(NO3)3 shows one aluminum ion combined with three nitrate ions to balance the charges, resulting in a neutral compound.
Name the cation first using its element name: 'Aluminum'. Since aluminum has only one common oxidation state (+3), no Roman numeral is needed in the name.
Name the anion by using the root of the polyatomic ion followed by '-ate' for nitrate, so the full name is 'Aluminum nitrate'.