Problem: Identify those elements that can be prepared by electrolysis of their aqueous salts:copper, barium, aluminum, bromine

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The standard reduction potential of water is: 

 H2O + e– ⇌ 1/2 H2 + OH–                     E˚ = – 0.828.0 V


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Identify those elements that can be prepared by electrolysis of their aqueous salts:

copper, barium, aluminum, bromine

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