Question

In the reaction: Cu(s) + 2 Ag+(aq) ---> Cu2+(aq) + 2 Ag(s)

1.Cu
2.Cu2+
3.Ag+
4.Ag

i know its Ag but is it Ag+ or just Ag? what does that extra plus mean?

Answer 1

You posted information but no question. See your previous post about redox.