Please note that you need to study Oxidation and Reduction before Electrochemistry.
Simple Electric Cells (11 mins)
Selective Discharge of Ions in Electrolytic Cells Part 1 (14 mins)
Selective Discharge of Ions in Electrolytic Cells Part 2 (12 mins)
Selective Discharge of Ions in Electrolytic Cells – NaCl Electrolytes (9 mins)
Test for Oxidising and Reducing Agents in Redox Reactions (16 mins)