Why salt is a good conductor of electricity?

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Updated: 26th November 2019

This is because salt water is a good conductor of electricity. Salt molecules are made of sodium ions and chlorine ions. (An ion is an atom that has an electrical charge because it has either gained or lost an electron.) These ions are what carry electricity through water.

Keeping this in consideration, why does salt conduct electricity when dissolved in water?

An electric current is a flow of electrical charge. Pure water contains very few ions, so it does not conduct electricity very well. When table salt is dissolved in water, the solution conducts very well, because the solution contains ions. The ions come from the table salt, whose chemical name is sodium chloride.

Why is salt a conductor in water?

Common table salt (NaCl) is an electrolyte, and when this is dissolved in water to form salt water, it becomes sodium ions (Na+) and chloride ions (Cl-), each of which is a corpuscle that conducts electricity. Let's go back to conductivity. Conductivity is an index of how easy it is for electricity to flow.

Why does sodium chloride conduct electricity when dissolved in water?

Conductive when liquid - Ions are charged particles, but ionic compounds can only conduct electricity if their ions are free to move. Ionic compounds do not conduct electricity when they are solid - only when dissolved in water or melted.
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