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Hard but brittle
When a force is exerted on the compound, atoms with similar charges within neighbouring layers face each other. The repulsive force splits the crystal.
High melting point
The strong electrostatic forces of attraction between oppositely charged ions requires a large amount of energy to overcome
Conducts electricity in aqueous/molten state
Strong electrostatic forces of attraction between oppositely charged ions have been overcome. Ions become mobile and are free to move around, able to conduct electricity.
Soluble in water but not organic solvents
Water molecules are polar and break up the ionic compound through ion-dipole interactions.
Organic solvents do not interact with the ions and do not break up the lattice.
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