Multiple Choice
What is the correct name for the ionic compound Mg(C2H3O2)2?
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3. Chemical Reactions
Naming Ionic Compounds
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What is the correct name for the ionic compound ZnO?
A
Zinc dioxide
B
Zinc(II) oxide
C
Zinc oxide
D
Zinc monoxide
Verified step by step guidance1
Identify the ions involved in the compound ZnO. Zinc (Zn) typically forms a Zn²⁺ ion, and oxygen (O) forms an O²⁻ ion.
Determine the charges of the ions to understand the ratio in the compound. Since Zn²⁺ and O²⁻ have equal and opposite charges, they combine in a 1:1 ratio to form a neutral compound.
Recall the naming conventions for ionic compounds: the metal (cation) is named first, followed by the nonmetal (anion) with its ending changed to '-ide'.
Since zinc forms only one common oxidation state (Zn²⁺), there is no need to specify the charge with Roman numerals in the name.
Therefore, the correct name for ZnO is 'zinc oxide', reflecting the 1:1 ratio and standard naming rules for ionic compounds.
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