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(Silver) Button Cell equation. (1 Viewer)

atBondi

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Dec 22, 2009
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HSC
2010
Anode reaction
• Zn(s) + 2OH-(aq) >>>> Zn(OH)(2)(s)+ 2e-

Cathode reaction
• Ag2O(s) + H2O(l) + 2e- >>> 2Ag(s) + 2OH-(aq)



Is this the overall reaction? Or should the Zn(OH) in the anode reaction match the product in the overall reaction?
( like the product up there is Zn hydroxide? while in overall reaction its just zinc oxide?)

Overall Reaction:
Zn(s) + Ag2O(s) >> ZnO(s) + 2Ag(s)
 

study-freak

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Feb 8, 2008
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HSC
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Anode reaction
• Zn(s) + 2OH-(aq) >>>> Zn(OH)2(s)+ 2e-

Cathode reaction
• Ag2O(s) + H2O(l) + 2e- >>> 2Ag(s) + 2OH-(aq)



Is this the overall reaction? Or should the Zn(OH) in the anode reaction match the product in the overall reaction?
( like the product up there is Zn hydroxide? while in overall reaction its just zinc oxide?)

Overall Reaction:
Zn(s) + Ag2O(s) >> ZnO(s) + 2Ag(s)
Fixed underlined part
Overall: Zn(s)+Ag2O(s)+H20(l)->Zn(OH)2(s)+2Ag(s)
 

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