Determine whether or not each redox reaction occurs spontaneously or nonspontane

Question

Determine whether or not each redox reaction occurs spontaneously or nonspontaneously in the forward direction.

Drag the appropriate redox reactions to their respective bins.

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2Al(s)+3Pb2+(aq) 2Al3+(aq)+3Pb(s)

2Ag+(aq)+Ni(s) 2Ag(s)+Ni2+(aq)

Ca2+(aq)+Zn(s) Ca(s)+Zn2+(aq)

Fe(s)+Mn2+(aq) Fe2+(aq)+Mn(s)

spontaneous

nonspontaneous

Part B) Suppose you wanted to cause Pb2+ ions to come out of solution as solid Pb.

What metal could you use to accomplish this?

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2Al(s)+3Pb2+(aq) 2Al3+(aq)+3Pb(s)

2Ag+(aq)+Ni(s) 2Ag(s)+Ni2+(aq)

Ca2+(aq)+Zn(s) Ca(s)+Zn2+(aq)

Fe(s)+Mn2+(aq) Fe2+(aq)+Mn(s)

spontaneous

nonspontaneous

Part B) Suppose you wanted to cause Pb2+ ions to come out of solution as solid Pb.

What metal could you use to accomplish this?

Explanation / Answer

Answer:-

Spontaneous reactions,

2Al(s) + 3Pb2+(aq) 2Al3+(aq) + 3Pb(s)

2Ag+(aq) + Ni(s) 2Ag(s) + Ni2+(aq)

Non spontaneous reactions,

Ca2+(aq) + Zn(s) Ca(s) + Zn2+(aq)

Fe(s) + Mn2+(aq) Fe2+(aq) + Mn(s)

Part B

Any metal which has less reduction potential than that of Pb2+

I.e., Fe

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