X is a salt that decomposes in water. What is the reason for its decomposition?e- + X3+ → X2+ Ecell = 1.91 V
Correct answer: B. This potential reduces salt
- A. This potential oxidizes salt
- B. This potential reduces salt
- C. This potential reduces water
- D. This potential oxidizes water
Explanation
The correct reason for the decomposition of salt X in water is that the potential (Ecell = 1.91 V) reduces the salt, leading to the reduction of X3+ ions to X2+ ions. Therefore, option b) This potential reduces salt is the correct explanation.
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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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