Describe an electrolyte as a liquid that contains free-moving ions.

An electrolyte is a liquid that contains free-moving ions, which are essential for the process of electrolysis. When an ionic compound is dissolved in water or melted, it dissociates into its constituent ions, allowing them to move freely. This movement of ions is crucial because, during electrolysis, an electric current is passed through the electrolyte, causing the ions to migrate towards the electrodes. Positive ions move towards the cathode (negative electrode) to gain electrons, while negative ions move towards the anode (positive electrode) to lose electrons. This flow of ions enables the chemical reactions necessary for electrolysis to occur.