From the Standard Potential Table in your general chemistry textbook:

Half-reactions are written as _________ reactions with charge and mass balanced.

Among the ions, Cd2+Pb2+ & Ca2+ ,__________ has the greatest ability to reduce to its neutral metal.
(Use ^ for superscripting)

Among the neutral metals; Pb, Ca & Cd, ____________ has the least ability to oxidize to the +2 ion.
(No special characters are need for subscripting)

The reactions are written as reductions reactions.

For questions 2 and 3, look up the reductin potentials in your text. The ions with the largest negative potential are the hardest to reduce.

I think half reactions are redox

and Pb has the greatest ability to reduce its neutral metal

first answer isnt redox, second one isnt calcium, third is for sure pb.

this is difficult because it doesnt match up to reading, webworks are starting to get unreasonable.

1. reduction

2. Pb^2+

3. Pb

1. reduction

2. Pb^2+
3. Pb

UCI girl is right

uci girl is right