i got some questions to do and i have done all of them except for 2
q1= Account for the colour changs that occured when NaOH solution and then HCl solution were added to the K2Cr2O7 solution.
q2=Explain the colour changes that occured when the concentrated HCl and then water were added to the solution containing the
Co(H2O) 6 ^2+ ion
q1= Account for the colour changs that occured when NaOH solution and then HCl solution were added to the K2Cr2O7 solution.
q2=Explain the colour changes that occured when the concentrated HCl and then water were added to the solution containing the
Co(H2O) 6 ^2+ ion