Group 2 Reactions, Ideal Gas Equation & Cells | A level Chemistry Exam Question Walkthrough

This video is a full A‑Level Chemistry exam‑question walkthrough on Group 2 reactions, the Ideal Gas Equation, and lithium cobalt oxide cells, taking you through the reasoning, calculations, and explanations in the way examiners expect. You can download the full exam question using the link below: https://drive.google.com/file/d/199USlbtb0j_brqyRB5m-TSfjfs40p61P/view?usp=sharing Links directory for all YouTube videos: https://drive.google.com/file/d/1s3I5prjbJRR1U1lcKpXO9TQpQMaVoP66/view?usp=sharing The walkthrough shows the exam‑marking points in purple, and the thinking‑out‑loud development and annotations in red/purple, so you can clearly see what earns marks and what helps you understand the chemistry. It covers key ideas that appear in A‑Level inorganic and physical chemistry, including Group 2 reactivity, gas calculations, and electrochemistry. Ideal for anyone revising Group 2 metals, the Ideal Gas Equation, or lithium cells. What this walkthrough covers Comparing reactivity of Group 2 metals Reaction of magnesium with steam Why barium reacts quickly then stops in sulfuric acid Using the Ideal Gas Equation to identify an unknown metal Formation and bonding in NaAlH₄ and its melting point Lithium cobalt oxide cells and why they are rechargeable Chapters 00:00 Intro and socials 00:05 How to use this walkthrough 00:49 Comparing Reactivity of Group 2 metals \| Reaction of Mg with steam 02:17 Reactions of Ba and Mg with sulfuric acid 05:16 Using the Ideal Gas Equation 10:57 NaAlH₄ formation and melting point 14:30 Lithium cobalt oxide cells How this was made This walkthrough was created using slide‑based explanations, with colour‑coded annotations to separate exam‑marking points from the thinking process, so you can pause, rewatch, and build your own written answers from the structure shown. 📲 Connect with Us: 📸 Instagram: @chemistrytutor123 🎵 TikTok: @chemistrytutor123 📧 Email: thechemistrytutor123@gmail.com