Determine what redox reaction, if any, occurs (at 25 degree C) when lead metal (

Question

Determine what redox reaction, if any, occurs (at 25 degree C) when lead metal (Pb) is added to (a) a 1.0 M solution of CdCl_2 and (b) a 1.0 M solution of HCl. (a) Pb is added to a 1.0 M solution of CdCl_2 A. Pb(s) + Cd^2+(aq) rightarrow Pb^2+(aq) + Cd(s) B. Pb^2+(aq) + 2Cl^-(aq) rightarrow Pb(s) + Cl_2(g) C. Cd^2+(aq) + 2Cl^-(aq) rightarrow Cd(s) + Cl_2(g) D. No reaction. (b) Pb is added to a 1.0 M solution of HCl A. Pb(s) + 2H^+(aq) rightarrow Pb^2+(aq) + H_2(g) B. Pb^2+(aq) + 2Cl^-(aq) rightarrow Pb(s) + Cl_2(g) C. Pb(s) + 2H_2O(l) rightarrow Pb(OH)_2(s) + H_2(g) D. No reaction.

Explanation / Answer

Determine what redox reaction, if any. occurs (at 25 degree C) w hen lead metal (Pb) is added to (a) a 1.0 M solution of CdCU and (b) a 1.0 M solution of HCl. Pb is added to a 1.0 M solution of CdCl2 Pb is added to a 1.0 M solution of HCl

Determine what redox reaction occurs?Determine what redox reaction, if any, occurs at 25C when lead metal (Pb) is added to a 1.0 M solution of CoCl2 and 1.0 M of HCl

A. Pb is added to a 1.0 M solution of CoCl2 options

a.Pb(s)+Co2+(aq)=Pb2+(aq)+Co(s)

b.Pb2+(aq)+2Cl-(aq)=Pb(s)+Cl2(g)

c.Co2+(aq)+2Cl-(aq)=Co(s)+Cl2(g)

d. No reaction -------------------answer

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B.Pb is added to a 1.0 M solution of HCl options

a.Pb(s)+2H+=Pb2+(aq)+H2(g) ---------------answer

b.Pb2+(aq)+2Cl-(aq)=Pb(s)+Cl2(g)

c.Pb(s)+2H2O(l)=Pb(OH2)(s)+H2(g)

d. No reaction

Pb(s) + 2H+(aq) -> Pb2+(aq)+H2(g) has a cell potential of +0.16V.

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