分类： IGCSE

ammonia, NH3 carbon dioxide, CO2 chlorine, Cl2 hydrogen…

7.1 The characteristic properties of acids and bases 1.…

multiple choice structural questions

BACK 4.1 Electrolysis 1. What is electrolysis? Electrol…

6.4 Redox 1. Definition In terms of oxygen Oxidation: g…

BACK 6.3 Reversible reactions and equilibrium 1. Featur…

9.6 Extraction of metals 1. Reactivity series and extra…

6.1 Rate of reaction 1. Definition Change in concentrat…

5.1 Endothermic and exothermic reactions 1. Basic conce…