Make and test predictions about products formed during electrolysis of aqueous solutions. (WS 2.2)

In the subtopic Electrolysis of aqueous solutions, this learning objective focuses on make and test predictions about products formed during electrolysis of aqueous solutions. (WS 2.2). It sits within Electrolysis for AQA GCSE Chemistry 8462 Unit 4.4, so the explanation must stay anchored to chemical changes rather than drifting into a general chemistry idea. Approved keywords to use include WS 2.2. Aqueous electrolysis. means the process of using electricity to drive a chemical reaction in a solution containing ions Avoid the mistake of students often predict that the metal will always be produced at the cathode during electrolysis of aqueous solutions, regardless of the metal's reactivity compared to hydrogen; instead, students should remember that if the metal is more reactive than hydrogen, hydrogen will be produced at the cathode instead. It's important to refer to the reactivity series when making predictions For exam answers, always consider the reactivity series when predicting products of electrolysis in aqueous solutions Keep acid, alkali and base distinct; keep oxidation and reduction distinct; do not mix reduction with displacement; keep electrolysis separate from electroplating; distinguish anode from cathode, positive ions from negative ions, oxidation state from ionic charge, and strong acid from concentrated acid.