7.1 Acids & Bases — Characteristic Properties | Cambridge IGCSE Chemistry 0620 Explained

Join my free skool community for online lessons: https://www.skool.com/high-school-che... 1 on 1 Lesson: https://forms.gle/Spu9wfLypBUzEDoK7 Acids and bases are opposites — and the easiest way to tell them apart is by what they do. Acids release H⁺ ions, turn litmus red, and have a pH below 7; bases (and alkalis) release OH⁻ ions, turn litmus blue, and have a pH above 7. In this video I explain the characteristic properties of acids and bases for Cambridge IGCSE Chemistry (0620), topic 7.1 — the start of acids, bases and salts. We cover what acids and bases are in terms of H⁺ and OH⁻ ions, the difference between a base and an alkali, how indicators (litmus, methyl orange, thymolphthalein) and the pH scale tell them apart, and the characteristic reactions of acids — with metals, bases (neutralisation), and carbonates. Once you know what each one does, you can identify and predict their reactions instead of memorising them. This is video 7.1 of my full Cambridge IGCSE 0620 chemistry series — built for understanding, not memorising. New here? Start from 1.1:    • 1.1 States of Matter — Cambridge IGCSE Che...   🧪 Want chemistry that makes sense instead of memorising? Join my free community, High School Chemistry — notes, worked questions and help: 👉 Join my free skool community for online lessons: https://www.skool.com/high-school-che...