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Caption: Conductivity. Demonstration of the electrical conductivity of potassium chloride (KCl) solution. The bulb is connected to a battery and two electrodes, forming an incomplete circuit. Because the solution conducts electricity, a current flows between the electrodes. This completes the circuit and allows the bulb to light. Pure water will not allow a current to flow. Potassium chloride is conductive because it is ionic: it splits into charged particles (ions) of K+ and Cl- in solution. It is these ions which allow the current to flow.

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Keywords: anode, aqueous, battery, beaker, cathode, chemical, chemistry, circuit, conductance, conducting, conductive, conductivity, conductor, demonstration, electrical, electricity, electrochemical, electrochemistry, electrodes, electrolyte, electrolytic, experiment, ionic, ions, light bulb, lightbulb, physical, physics, potassium chloride, solution, superconductor, test, water, wires

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