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← ScienceWhich factor primarily dictates the melting point of ionic compounds found within rock salt deposits?
A)Magnitude of electrostatic attraction✓
B)Size of constituent halide anions
C)Polarizability of the dissolved solvent
D)Mass difference between cations and anions
💡 Explanation
When heated, an ionic compound melts when thermal energy overcomes the lattice energy, itself directly proportional to the electrostatic attraction based on Coulomb's law. Therefore the magnitude of electrostatic attraction dominates, rather than ion size, solvent effects, or insignificant mass differences influencing melting temperatures.
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