Multiple Choice
Which of the following is the correct name for the BrO4^- ion?
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3. Chemical Reactions
Naming Ionic Compounds
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Which of the following is the correct name for the compound formed between magnesium and sulfur?
A
Magnesium sulfide
B
Magnesium(II) sulfur
C
Magnesium sulfate
D
Magnesium sulfur
Verified step by step guidance1
Identify the elements involved: magnesium (Mg) and sulfur (S).
Determine the type of compound formed: magnesium is a metal and sulfur is a nonmetal, so they form an ionic compound.
Recall the naming convention for ionic compounds: the metal (cation) name is stated first, followed by the nonmetal (anion) name with its ending changed to '-ide'.
Since magnesium typically forms a +2 charge (Mg^{2+}) and sulfur forms a -2 charge (S^{2-}), the compound is electrically neutral with a 1:1 ratio.
Combine the names accordingly: 'Magnesium' for the metal and 'sulfide' for the sulfur anion, resulting in the name 'Magnesium sulfide'.
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