CAMBRIDGE IGCSE CHEMISTRY 0620 EXTENDED

A place to think chemistry.

Welcome to Isaac’s Chemroom. Find your chapter, revisit an idea and put it into practice.

Course overview

Chapters 1–6

Explore states, changes and diffusion through the particle model.

Choose separation methods, interpret chromatography and calculate Rf.

Connect atomic structure, isotopes, ions and periodic patterns.

Connect ions and bonds with the properties of materials.

Write formulae, balance equations and calculate reacting masses, composition and purity.

Connect mass, particles, gas volumes and concentration through mole ratios.

CHAPTER 2 PRACTICE

Practise choosing a method and explaining why it works.