객관식
What is the correct name for the ionic compound FeO?
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3. Chemical Reactions
Naming Ionic Compounds
객관식
Which type of compound is CuSO_4?
A
Ionic compound
B
Covalent compound
C
Molecular compound
D
Organic compound
검증된 단계별 안내1
Identify the elements and groups present in the compound CuSO_4. Here, Cu is copper, a metal, and SO_4 is the sulfate ion, a polyatomic ion composed of nonmetals.
Recall that ionic compounds are generally formed between metals and nonmetals or polyatomic ions. Covalent (molecular) compounds are usually formed between nonmetals only.
Since Cu is a metal and SO_4 is a polyatomic ion (nonmetal group), the bond between Cu and SO_4 is ionic in nature.
Understand that organic compounds primarily contain carbon and hydrogen atoms, often with other elements, but CuSO_4 does not contain carbon, so it is not organic.
Conclude that CuSO_4 is an ionic compound because it consists of a metal cation (Cu^{2+}) and a polyatomic anion (SO_4^{2-}), held together by ionic bonds.
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