Edexcel IGCSE Chemistry Textbook Concise resources for the IGCSE Edexcel Maths course Unit 1 Principles of Chemistry 1. States of matter2. Elements ,Compounds & Mixtures3. Atomic Structure4. The Periodic Table5. Chemical Formulae ,Equations & Calculation Part 16. Chemical Formulae ,Equations & Calculations Part 27. Ionic Bonding8. Covalent Bonding 9. Metallic Bonding10. ElectrolysisUnit 1 questions Unit 2 Inorganic Chemistry11. The Alkali metals12. The Halogens13. Gases in the Atmosphere14. Reactivity Series15. Extraction & Uses of Metals16.Acids ,Alkalis & Titrations17. Acids , Bases & Salt Preparations18. Chemical Tests Unit 3 Physical chemistry19. Energetics20. Rates of Reactions21. Reversible Reactions & Equilibria Unit 4 Organic Chemistry22. Introduction to Organic Chemistry23. Crude Oil24. Alkanes25. Alkenes26. Alcohols27. Carboxylic Acids28.Esters29. Synthetic Polymers