Multiple Choice
Which of the following is the correctly named ionic compound?
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3. Chemical Reactions
Naming Ionic Compounds
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Which of the following statements correctly describes the difference between molecular and ionic compounds?
A
Ionic compounds consist of molecules, while molecular compounds consist of ions.
B
Molecular compounds conduct electricity in solution, while ionic compounds do not.
C
Molecular compounds are always solids at room temperature, while ionic compounds are always liquids.
D
Molecular compounds are formed by the sharing of electrons between nonmetal atoms, while ionic compounds are formed by the transfer of electrons between metal and nonmetal atoms.
Verified step by step guidance1
Understand the nature of molecular compounds: Molecular compounds are formed when atoms, typically nonmetals, share electrons through covalent bonds to achieve stable electron configurations.
Understand the nature of ionic compounds: Ionic compounds form when electrons are transferred from metal atoms to nonmetal atoms, resulting in positively charged cations and negatively charged anions held together by electrostatic forces.
Analyze the incorrect statements: For example, ionic compounds do not consist of discrete molecules but rather a lattice of ions; molecular compounds generally do not conduct electricity in solution unless they ionize; and physical states at room temperature vary widely for both types.
Recognize that the key difference lies in the type of bonding: covalent bonding (electron sharing) for molecular compounds versus ionic bonding (electron transfer) for ionic compounds.
Conclude that the correct description is that molecular compounds are formed by sharing electrons between nonmetal atoms, while ionic compounds are formed by transferring electrons between metal and nonmetal atoms.
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