Molten NaCl:
* Charge Carriers: Sodium ions (Na+) and chloride ions (Cl-)
* Explanation: When NaCl melts, the ionic bonds break, and the ions become free to move. This allows them to carry electrical current.
Aqueous NaCl (Saltwater):
* Charge Carriers: Sodium ions (Na+) and chloride ions (Cl-), as well as hydrated electrons (electrons surrounded by water molecules).
* Explanation: In solution, the NaCl dissolves into ions. The ions are free to move, carrying current. Additionally, water molecules can also participate in conduction by accepting electrons and becoming hydrated electrons.
Key Points:
* Ionic Compounds: The basic principle is that in ionic compounds (like NaCl), electricity is conducted by the movement of ions.
* Hydrated Electrons: The presence of hydrated electrons in aqueous solutions enhances the conductivity of the solution.
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