o 12/2/2015 10:00 PM @25/100 Gradebook PrintCator Periodic Table Calculator Ques

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o 12/2/2015 10:00 PM @25/100 Gradebook PrintCator Periodic Table Calculator Question 4 of 12 Map sapling learming Complete the two reduction half reactions for the cell shown at the right, and show the line notation for the cell by dragging labels to the correct position. (The electrode on the left is the anode, and the one on the right is the cathode.) Anode half-reaction: Cathode half-reaction PbCl2) - 2s2e +2e Ag(s) + 2C1 CI(s) 2AgCl(s) KCI(aq) KCI(aq) Line notation PbC2(s) C(aq) I AgCl(sAgts) s) PbC2(s) 2Ag(s) Ag(s)) AgCl(s) Incorrect. Previous Give Up & View Solution # Try Again Next Exit Explanation

Explanation / Answer

Anode half reaction: Oxidation takes place at anode

Pb(s) + 2Cl- (aq) + 2e- ----------> PbCl2(s)

Cathode half reaction: Reduction takes place at cathode

2AgCl(s) + 2e- -------> 2Ag(s) + 2Cl- (aq)

Line notation: anode II cathode

Pb(s) I  PbCl2(s) I Cl-(aq) II  Cl-(aq) I  AgCl(s) I Ag(s)

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