CH-290
Ionic bonding
Chemistry · Secondary 3 · Medium · Ionic bonding
Which statement explains why sodium chloride conducts electricity when molten but not when solid?
- Electrons are free to move in the solid but not in the liquid.
- Covalent bonds in solid NaCl prevent conduction.
- Ions are fixed in the solid but mobile in the molten state.
- NaCl decomposes into atoms when molten, which cannot carry charge.
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