9. Reveal the essence of fractional and systematic methods of analysis. Suggest options for separating and detecting cations in the solutions below, which are a mixture of cations of different analytical groups, by fractional and systematic methods. Describe in detail the determination procedure in a systematic manner. Draw up equations for the corresponding reactions, indicate the conditions for the reactions to occur.
9. Ba2, Cr3, Bi3, Sn2

If you cannot open the file or have any problems, do not rush to leave a negative review! Contact me and I will quickly help you solve the problem. After purchasing, please leave a positive review of the product :)