Multiple Choice
Which type of solid does not have a precise melting point?
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13. Liquids, Solids & Intermolecular Forces
Atomic, Ionic, and Molecular Solids
Multiple Choice
Which of the following compounds does not contain individual molecules?
A
CO2
B
H2O
C
NaCl
D
NH3
Verified step by step guidance1
Understand the difference between molecular compounds and ionic compounds. Molecular compounds consist of individual molecules formed by covalent bonds, while ionic compounds form a lattice structure without discrete molecules.
Examine each compound: CO2 (carbon dioxide) is a molecular compound with covalent bonds between carbon and oxygen atoms, forming individual molecules.
H2O (water) is also a molecular compound where hydrogen and oxygen atoms are covalently bonded, creating distinct water molecules.
NH3 (ammonia) is a molecular compound with covalent bonds between nitrogen and hydrogen atoms, forming individual molecules.
NaCl (sodium chloride) is an ionic compound composed of a lattice of Na+ and Cl- ions held together by ionic bonds, and it does not consist of individual molecules.
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