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Chapter 20 Electrochemistry

Chemistry: The Central Science , 10th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten. Chapter 20 Electrochemistry. Todd Austell, The University of North Carolina  2006, Pearson Prentice Hall. Yes No . Yes No .

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Chapter 20 Electrochemistry

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  1. Chemistry: The Central Science, 10th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten Chapter 20 Electrochemistry Todd Austell, The University of North Carolina  2006, Pearson Prentice Hall

  2. Yes • No

  3. Yes • No

  4. because they are being repelled by the negative charges building up in the cathode. • because a negative charge must be maintained in the anode to keep the cell working. • because positive charge builds up in the anode and must be neutralized as oxidation takes place there. • because the anions provide a carrier for the cell’s electrical current.

  5. because they are being repelled by the negative charges building up in the cathode. • because a negative charge must be maintained in the anode to keep the cell working. • because positive charge builds up in the anode and must be neutralized as oxidation takes place there. • because the anions provide a carrier for the cell’s electrical current.

  6. the interior Zn atoms • the surface Zn atoms • Both the interior and surface Zn atoms are equally involved.

  7. the interior Zn atoms • the surface Zn atoms • Both the interior and surface Zn atoms are equally involved.

  8. Yes • We need more information to determine spontaneity. • No

  9. Yes • We need more information to determine spontaneity. • No

  10. 1 barr pressure for Cl2(g) and 1 M solution for Cl–(aq). • 1 M solution for Cl2(g) and for Cl–(aq). • 1 atm pressure for Cl2(g) and for Cl–(aq). • 1 atm pressure for Cl2(g) and 1 M solution for Cl–(aq).

  11. 1 barr pressure for Cl2(g) and 1 M solution for Cl–(aq). • 1 M solution for Cl2(g) and for Cl–(aq). • 1 atm pressure for Cl2(g) and for Cl–(aq). • 1 atm pressure for Cl2(g) and 1 M solution for Cl–(aq).

  12. We need more information to determine driving force. • True • False

  13. We need more information to determine driving force. • True • False

  14. Hg(l) • Pb(s)

  15. Hg(l) • Pb(s)

  16. only Cu • only Ni • Al, Zn • Cu, Ni

  17. only Cu • only Ni • Al, Zn • Cu, Ni

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