Electrolysis: Aqueous Solutions and Half Equations 🧪 GCSE Chemistry Learning & Revision

In this episode, we will discuss the electrolysis of aqueous solutions and half equations.Predicting products during the electrolysis of aqueous solutions is complex due to water's dissociation into hydrogen and hydroxide ions. At the positive electrode (anode), either halogens form if halide ions are present, or oxygen gas is produced otherwise. Conversely, at the negative electrode (cathode), hydrogen gas evolves if the metal is more reactive than hydrogen, while the metal itself deposits if it's less reactive. These electrode reactions can be represented by half-equations, illustrating the oxidation (loss of electrons) at the anode and reduction (gain of electrons) at the cathode, as exemplified by the electrolysis of lead bromide.Don't miss out on subscribing for more educational content tailored to help you succeed in your exams. Perfect for AQA, OCR, Edexcel, CIE and WJEC exam boards.⁠Click here to see all of our GCSE Chemistry content!