Which statement about galvanic cells is TRUE?
Correct answer: B. They convert chemical energy into electrical energy
- A. They require external current
- B. They convert chemical energy into electrical energy
- C. Cathode is negative
- D. Anode undergoes reduction
Explanation
Galvanic cells operate spontaneously to produce electricity.
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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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