CH-235
Structure and properties
Chemistry · Secondary 3 · Hard · Structure and properties
Which statement explains why solid sodium chloride does not conduct electricity but molten sodium chloride does?
- In the solid, ions are fixed; in the molten state, ions are free to move and carry charge.
- In the solid, electrons are free; in the molten state, electrons are fixed.
- In the solid, there are no ions; in the molten state, ions are formed.
- In the solid, covalent bonds prevent conduction; in the molten state, bonds become metallic.
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