reducing agents?

Question

For statements a) through d) use the following reaction:


Cu(s) + 2Ag+(aq) --> 2Ag(s) + Cu2+(aq)

a) Cu is the reducing agent

b) Ag+ is the reducing agent

c) Cu is reduced

d) Ag+ is reduced





e) Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g) is a redox reaction

f) Cr2O72-(aq) + 2OH-(aq) --> 2CrO42-(aq) + H2O(l) is a redox reaction

Answer 1

True: a,d,e
False: b,c,f
Note in f that you have a change in the structure of the polyatomic anion but not in the oxidation number of any of the elements.

Answer 2

Ag+ is being reduced to Ag metal and Cu is technically the reducing agent, so both a and d are correct