5. Write the equations of redox reactions in electronic and ion-electronic forms: a) Cr(NO3)3 PbO2 NaOH; b) K2S K2SO3 HCl; c) MnO2 H2O2 H2SO4; d) NaNO2 KMnO4 H2SO4; e) Ni(OH)3 H2O2 H2SO4. Specify the oxidizing agent, reducing agent and the reaction of the medium. Write down the standard redox potentials of pairs. Why are these reactions used in qualitative analysis?

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.