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Author Question: Using a table of standard electrode potentials, decide which of the following statements is completely true. (Read 51 times)

Facerro

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Question 1

Under standard-state conditions, which of the following half-reactions occurs at the cathode during the electrolysis of aqueous nickel sulfate at 25°C?
◦ 2H2O → O2 + 4H+ + 4e

◦ Ni2+ + 2e→ Ni
◦ 2H2O + 2e→ H2 + 2OH

◦ Ni → Ni2+ + 2e


Question 2

Using a table of standard electrode potentials, decide which of the following statements is completely true.
◦ Cu2+ can oxidize H2, and Fe can reduce Mn2+.
◦ Ni2+ can oxidize Cu2+, and Fe2+ can reduce H+.
◦ Fe2+ can oxidize H2, and Fe2+ can reduce Au3+.
◦ Br2 can oxidize Ni, and H2 can reduce Mn2+.
◦ H+ can oxidize Fe, and Ni can reduce Br2.


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Marked as best answer by Facerro on Nov 5, 2023

ElaneShive

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Facerro

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Reply 2 on: Nov 5, 2023
Thanks for the timely response, appreciate it


apple

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Reply 3 on: Yesterday
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