Question

Pure water and pure salt are poor conductors of electricity. When salt is dissolved in water, the resulting solution conducts electricity well. Which statement explains why this occurs with these substances?(1 point)
Responses

The process of dissolving frees the electrons in the solution to move.
The process of dissolving frees the electrons in the solution to move.

The process of dissolving frees the atoms in the solution to move.
The process of dissolving frees the atoms in the solution to move.

The process of dissolving more closely binds the electrons in the solution.
The process of dissolving more closely binds the electrons in the solution.

The process of dissolving closely binds the ions in the solution.

Answer 1

Dissolving salt produces mobile ions (Na+ and Cl-) that carry charge through the solution, so the solution conducts electricity. (Select the choice that says the dissolving process frees particles to move — it should say ions rather than electrons.)