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 closely binds the ions in the solution. The process of dissolving closely binds the ions in the solution. 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 more closely binds the electrons in the solution. The process of dissolving more closely binds the electrons in the solution. The process of dissolving frees the atoms in the solution to move.

Answer 1

The correct statement that explains why a saltwater solution conducts electricity well is:

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

When salt (sodium chloride) is dissolved in water, it dissociates into its component ions (sodium ions and chloride ions), which are free to move throughout the solution. This movement of ions allows the solution to conduct electricity effectively. Pure water and pure salt do not conduct electricity because they lack free-moving charged particles.