Explain why solid sodium chloride does not conduct electricity

It does not contain free mobile ions

Explanation:

Solid sodium chloride does not conduct electricity because it does not contain free mobile ions.

Although sodium chloride is an ionic compound, in solid state, there is absence of free mobile ions. In aqueous solutions or in molten form, ionic compounds can conduct an electric current using free mobile ions as carriers. Therefore, they are electrolytes.

In solid state ions are arranged into crystal lattice and will not conduct a current of electricity.

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Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.