4. For a pair of metals:
-determine whether corrosion is possible on contact with air;
-write the equations of the anodic and cathodic processes, having analyzed the examples of hydrogen and oxygen depolarization at a given pH value of the medium;
- offer anode and cathode coating for corroded metal.
Sn-Ag, pH=6.

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