Problem: Choose the pair of names and formulas that do not matcha) Aluminum bromide, AlBr3b) Calcium phosphate, Ca­3P2c) Potassium permanganate KMnO4d) Sodium sulfite, Na2SO3e) Iron(III) oxide, Fe2O3

FREE Expert Solution

We’re being asked to choose the pair of names and formulas that do not match. We're given ionic compounds.


The rules for ionic compounds are as follows:

1. The metal keeps its name and is named and written first.

– For transition metals, we use Roman numerals to denote its charge.


2. The nonmetal keeps its base name but has its ending changed to –ide.

– For polyatomic ions, name the polyatomic ion as you would normally.


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Problem Details

Choose the pair of names and formulas that do not match

a) Aluminum bromide, AlBr3

b) Calcium phosphate, Ca­3P2

c) Potassium permanganate KMnO4

d) Sodium sulfite, Na2SO3

e) Iron(III) oxide, Fe2O3

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