A voltaic cell was made by combining the following electrodes with an appropriate electrolyte solution. Which is the positive electrode and which is the negative electrode? 1) Zn and Cu 2) AI and Pb 3) Zn and Mg 4) Pb and Ag 5) Hydrogen and Ag

Chemistry & Chemical Reactivity
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Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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Chapter19: Principles Of Chemical Reactivity: Electron Transfer Reactions
Section: Chapter Questions
Problem 7PS: A voltaic cell is constructed using the reaction of chromium metal and iron(II) ions. 2 Cr(s) + 3...
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A voltaic cell was made by combining the following electrodes with an appropriate electrolyte solution. Which is the positive electrode and which is the negative electrode?

1) Zn and Cu
2) AI and Pb
3) Zn and Mg
4) Pb and Ag
5) Hydrogen and Ag 

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