electrolysis

Cards (3)

    1. pour 50cm3 of solution into a beaker and place a plastic petri dish with two holes over the beaker
  • 2. insert electrodes (made from carbon graphite) and attach crocodile leads to the rods and connect to a low-voltage power supply.
  • 3. if the metal is less reactive than hydrogen, the metal is discharged at the cathode.