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13 Cards in this Set
- Front
- Back
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Galvanic (voltaic) cell
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device that uses spontaneous redox reactions to generate electric current
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Anode
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hlaf cell that gets oxidized
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Caathode
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Half cell that gets reduced
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G for redox reaction
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-nFE
n- # e-ns transfered |
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Reaction is spontaneous if cell voltage is
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positive
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Reaction is non spontatneous if cell voltage is
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negative
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Good reducing agent has..
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more negative reduction potential
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Good oxidizing agent
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more positive reduction potential
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Electrolytic cell
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uses external voltage source (battery) to drive non spontaneous rxn
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Anode and cathode sign in galvanic cell
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Anode is negative, cathode is positive
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Anode and cathode sigh in electrolytic cell
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Anode is positive, cathode is negative
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faradays law of electrolysis
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Amount of chemical change is proportional to the amount of electricity that flows through the cell
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Concentration cell
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galvanic cell that has identical electrodes but different ion concentrations
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