Problem- 1) What initially forms as pale blue and pale green precipitates when NH3 (aq) is added to [Cu(H2)6]2+ and [Ni(H2O)6]2+ solutions, respectively?

2) Color of CoCl2 (aq): Clear red
Color after addition of HCl (aq): dark purple
Color after the addition of h2o: violet

Account for the changes you observed for the cobal solutions in terms of le Chatelier's principle.

Please define why and show work any help is appreciated