As transition metals form ligands, is Cu2+ the same thing as [Cu(H2O)6]2+?
One of my textbooks says the reaction:
[Cu(H2O)6]2+ + 2OH- -> [Cu(OH)2(H2O)4] + 2H2O
is the same thing as
Cu2+ + 2OH- -> Cu(OH)2
Does this mean they are physically the exact same thing, same colour and all? If Cu2+ is in a solution surely it would just bond to water which makes me think they are exactly the same. Could anyone help explain if they are different things or not, thanks