A fuel cell is a typical galvanic cell that is based on a reaction between:
Correct answer: C. Hydrogen and oxygen
- A. Hydrogen and copper
- B. Methane and oxygen
- C. Hydrogen and oxygen
- D. Nitrogen and oxygen
- E. Hydrogen and zinc
Explanation
Hydrogen and oxygen: This is the reaction in a hydrogen fuel cell, where hydrogen (H₂) reacts with oxygen (O₂) to produce electricity, water, and heat.
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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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