Electron flow in a galvanic cell is always:
Correct answer: B. External, anode → cathode
- A. Internal, cathode → anode
- B. External, anode → cathode
- C. External, cathode → anode
- D. Only through salt bridge
Explanation
Electrons leave the anode and enter the cathode through the external wire.
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Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.
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