well I know that copper (II) sulfate pentahydrate is CuSO4 and glycine is C2H5NO2 and Copper Glycine is Cu(Gly)n 2+, but I don't understand how to get from CuSO4+C2H5NO2 -->Cu(Gly)n 2+-- even with double replacement. I guess what I'm trying to say is that if I can figure out the equation, I may understand how to work out the problem.