Demystify redox chemistry with this Redox Reactions PowerPoint, ideal for Grades 9–12, GCSE, and IGCSE. The opening slides hook learners by simplifying the core idea: oxidation = loss of electrons, reduction = gain of electrons. Includes oxygen-transfer definitions, electron-transfer half-equations, oxidation numbers, redox in displacement reactions, combustion, and hydrogen/oxygen reactions. Detailed examples help students practice assigning oxidation states. Estimated Slide Count: ~28–32 slid