Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Electrolysis
Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electroly…
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Given the equation in an acidic medium: Cr2O72¯ + Mn2+ --> Cr2+ + MnO4¯

 

Choose all the statements that correctly apply:

   

There are 5 electrons in the oxidation half-reaction BEFORE balancing the equation electrically
   

Based on the over – all balanced equation, there will be 5 moles of Cr2O7-2
   

After balancing it electrically, there will be a total of 40 electrons for each of the half – reaction.
   

In the over-all balanced equation, 6 moles of H2O is present
   

There are 8 electrons in the reduction half – reaction BEFORE balancing the equation electrically
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