Aqa Gcse Chemistry - Paper 1 Study Guide Rated A+

Explain why graphite can conduct electricity {Ans: It contains delocalised electrons which can carry electrical charge}Metals that react with water out of the RS {Ans: Potassium, sodium, lithium and calcium}What is atom economy? {Ans: The atom economy (atom utilisation) of a reaction tells you how much of the mass of the reactants is wasted when manufacturing a chemical and how much ends up as useful products}Aluminium Oxide - Cathode Half Equation {Ans: Al(three plus) + 3e(minus) --> Al}What type of reaction do hydrogen-oxygen fuel cells involve? {Ans: A redox reaction}What pattern is formed from carrying out paper chromatography? {Ans: Chromatogram}