AP Chemistryeasymcq1 pt
Which property best distinguishes ionic compounds from covalent molecular compounds?
A.High melting point
B.Contains carbon
C.Dissolves in water
D.Forms gases at room temperature
Explanation
Core Concept
Ionic lattices hold ions with strong, omnidirectional electrostatic forces, so melting requires overcoming many attractions — melting points run in the hundreds of degrees. Molecular compounds melt with much less energy.
Correct Answer
AHigh melting point
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