Order what happens during electrolysis

Exercise and reference answers

Steps

1. Pass direct current through the electrolyte
2. Cations move to cathode (−)
3. Anions move to anode (+)
4. Hydrogen liberated at cathode
5. Oxygen liberated at anode
6. Volume of hydrogen is double that of oxygen

Instructions

Tap the stages in order, from the current going in to the gases coming off.