WJEC Chemistry for AS Level: Revision Workbook

Unit 1: The Language of Chemistry, Structure of Matter and Simple Reactions 1.1: Formulae and equations Topic summary Construct equations for unfamiliar reactions from given information Construct equations for familiar reactions Produce ionic equations for precipitations and other reactions Balance equations and ionic equations Chemical equations Formulae and equations Combine ions to form the formulae of ionic compounds State symbols Recall common oxidation states Calculate oxidation states in compounds and ions Oxidation states Recall the formulae of common compounds Recall the charges on common monatomic ions and link to their position in the periodic table Recall the formulae and charges of common compound ions Chemical formulae 1.1: Formulae and equations | 11 Unit 1 Practice questions