Electrochemical Reactions |Grade 12 Physical Sciences Paper 2 | Galvanic & Electrolytic Cells (CAPS)

Electrochemistry made simple. This lesson covers the whole Grade 12 topic, CAPS-aligned, with worked examples and Level 7 tips: galvanic cells, cell notation, emf calculations, the standard hydrogen electrode, electrolysis and the chlor-alkali process. Keep your data sheet (Table of Standard Reduction Potentials) next to you. 📌 Chapters 0:00 Intro: AN OX, RED CAT 0:28 Oxidation, reduction and agents 1:07 Anode, cathode and electrolyte 1:28 Galvanic vs electrolytic cells 2:23 The zinc–copper galvanic cell 3:10 Half-reactions and observations 3:50 The salt bridge, and finding the anode 4:31 Cell notation 5:16 Calculating emf 5:55 Worked example: magnesium–silver cell 6:57 Worked example: gas half-cell with platinum 7:31 Is a reaction spontaneous? 8:09 Why cells go flat 8:57 Standard conditions and the SHE 9:51 Reading the sign of E° 10:32 Electrolytic cells 11:32 Decomposition of copper(II) chloride 12:12 Electroplating 12:58 Refining copper 13:46 The membrane cell (chlor-alkali) 14:25 Why water is reduced, and uses of the products 15:09 How to score Level 7 15:58 Practice exercise ✏️ Pause at the end and try the practice exercise with your data sheet, then check your answers. 🔔 Subscribe to Sir Solves for more Grade 10–12 Physical Sciences and Maths exam prep. Sir Solves · simplified solving skills #Grade12 #PhysicalSciences #Electrochemistry #GalvanicCell #Electrolysis #Matric #CAPS #NSC #Paper2 #SouthAfrica