Consider the galvanic cell shown below. -Identify the anode and cathode,and indicate the direction of ion flow to and from each electrode. A)Al is the anode and Co is the cathode;Al³⁺ ions flow to the anode and Co²⁺ ions flow from the cathode. B)Al is the anode and Co is the cathode;Co²⁺ ions flow to the cathode and Al³⁺ ions flow from the anode. C)Co is the anode and Al is the cathode;Al³⁺ ions flow to the cathode and Co²⁺ ions flow from the anode. D)Co is the anode and Al is the cathode;Co²⁺ ions flow to the anode and Al³⁺ ions flow from the cathode.

Question

Quizplus · Accepted Answer

In electrochemical cells, the anode is the electrode where oxidation occurs, and the cathode is where reduction occurs. Aluminum (Al) is more reactive than Cobalt (Co), meaning Al will more readily lose electrons (oxidize) than Co. Therefore, Al is the anode, and Co is the cathode. At the anode, Al loses electrons (oxidation) and becomes Al^3+ ions, which move away from the anode. At the cathode, Co^2+ ions gain electrons (reduction) and move towards the cathode. This makes choice B correct.

Consider the Galvanic Cell Shown Below