What is the function of a salt bridge in a galvanic electrochemical cell?
Answer and explanation
Correct answer: A. It maintains electrical neutrality by allowing ions to migrate between half-cells
- Step 1: As oxidation and reduction proceed, positive charge accumulates at the anode and negative at the cathode. Step 2. The salt bridge allows anions to flow to the anode and cations to the cathode, preventing charge buildup. Answer: It maintains electrical neutrality by allowing ions to migrate between half-cells. Why not the others: Electrons travel through the external metallic wire, never through the salt bridge solution.
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