Galvanic cell

Galvanic cell - during oxidation at the anode? 1. What...

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Each metal has a different capacity to oxidize. The electrochemical interaction depends on the other metal’s tendency to oxidize. If one metal has a higher capacity to oxidize then it will do so while the other metal will undergo reduction. To the left, notice that zinc undergoes oxidation and copper undergoes reduction. For the next five questions, refer to the diagram. 1. How many half-cells are there in this electrochemical cell and what are their names? 2. Match oxidation and reduction to their respective electrode. 3. In which direction do the electrons flow and what is their conductor? 4. What ion replaces the charges that are lost in the solution when Cu 2+ reduces at the cathode? 5. What ion replaces the charges when electrons are released by the zinc
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Unformatted text preview: during oxidation at the anode? 1. What would happen in a galvanic cell if the neutral charge is not maintained in the half-cells? Ans: If the neutral charge is not maintained in the half-cells, a charge difference would develop between the half-cells and the reaction would stop. 2. In the Daniell cell above, with the porous barrier the positive charge in the zinc half-cell is neutralized by: a. positive ions migrating towards the anode. b. negative ions migrating towards the cathode. c. negative ions migrating towards the anode. d. positive zinc ions, Zn 2+ , being reduced to produce zinc atoms. c) negative ions migrating towards the anode....
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This note was uploaded on 07/06/2011 for the course SCH 4U taught by Professor White during the Spring '10 term at Beacon FL.

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Galvanic cell - during oxidation at the anode? 1. What...

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