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7.When used as electrodes in an electrochemical cell, what two elements would have the greatest electrical voltage? a.aluminum-magnesium or aluminum-zinc, because they would transfer the most electrons per atom b.lithium-gold, because lithium is the strongest reducing agent and gold is the strongest oxidizing agent c.mercury-gold, because they are the two strongest oxidizing agents d.lithium-potassium, because they have the highest chemical activity

7.When used as electrodes in an electrochemical cell, what two elements would have the greatest electrical voltage? a.aluminum-magnesium or aluminum-zinc, because they would transfer the most electrons per atom b.lithium-gold, because lithium is the strongest reducing agent and gold is the strongest oxidizing agent c.mercury-gold, because they are the two strongest oxidizing agents d.lithium-potassium, because they have the highest chemical activity

Fundamentals Of Analytical Chemistry
Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
Publisher:Skoog
Chapter22: Bulk Electrolysis: Electrogravimetry And Coulometry
Section: Chapter Questions
Problem 22.21QAP
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7.When used as electrodes in an electrochemical cell, what two elements would have the greatest electrical voltage?

a.aluminum-magnesium or aluminum-zinc, because they would transfer the most electrons per atom

b.lithium-gold, because lithium is the strongest reducing agent and gold is the strongest oxidizing agent

c.mercury-gold, because they are the two strongest oxidizing agents

d.lithium-potassium, because they have the highest chemical activity

 

Oxidation Half-Reaction Element - high chemical activity lithium Li(s) » Li*(aq) + e potassium K(s) → K*(aq) + e barium Ba(s) Ba*(aq) + 2e calcium Cals) » Ca*(ag) + 2e sodium Na(s) Na*(ag) + e magnesium Mg(s) Mg*(aq) + 2e" aluminum Al(s) A*(aq) + 3e zinc Znls) Zn*(aq) + 2e iron Fe(s) Fe*(aq) + 2e nickel Ni(s) > Ni*(aq) + 2e lead Pb(s) > Pb+(aq) + 2e copper Culs) → Cu**(aq) + 2e silver Ag(s)→ Ag*(aq) + e mercury Hg(s) Hg*(aq) + 2e • low chemical activity gold Au(s) > Aut(aq) + 3e
Transcribed Image Text:Oxidation Half-Reaction Element - high chemical activity lithium Li(s) » Li*(aq) + e potassium K(s) → K*(aq) + e barium Ba(s) Ba*(aq) + 2e calcium Cals) » Ca*(ag) + 2e sodium Na(s) Na*(ag) + e magnesium Mg(s) Mg*(aq) + 2e" aluminum Al(s) A*(aq) + 3e zinc Znls) Zn*(aq) + 2e iron Fe(s) Fe*(aq) + 2e nickel Ni(s) > Ni*(aq) + 2e lead Pb(s) > Pb+(aq) + 2e copper Culs) → Cu**(aq) + 2e silver Ag(s)→ Ag*(aq) + e mercury Hg(s) Hg*(aq) + 2e • low chemical activity gold Au(s) > Aut(aq) + 3e
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