AQA AS Chemistry Student Unit Guide: Unit 2 Chemistry in Action

AQA AS Chemistry Student Unit Guide: Unit 2 Chemistry in Action

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Improve your grades by focusing revision and build confidence and strengthen exam technique. Student Unit Guides are perfect for revision. Each guide is written by an examiner and explains the unit requirements, summarises the relevant unit content and includes a series of specimen questions and answers. There are three sections to each guide: Introduction - includes advice on how to use the guide, an explanation of the skills being tested by the assessment objectives, an outline of the unit or module and, depending on the unit, suggestions for how to revise effectively and prepare for the examination questions, Content Guidance - provides an examiner's overview of the module's key terms and concepts and identifies opportunities to exhibit the skills required by the unit. It is designed to help students to structure their revision and make them aware of the concepts they need to understand the exam and how they might analyse and evaluate topics and Question and Answers - sample questions and with graded answers which have been carefully written to reflect the style of the unit. All responses are accompanied by commentaries which highlight their respective strengths and weaknesses, giving students an insight into the mind of the examiner.Ideally, all metals should be recycled, but the cost of collection, transportation and separation of the scrap metal must be ... of iron than iron ore a#39; scrap iron can be made molten in the electric arc process used to produce many alloy steels a€” an electric arc passes between electrodes, generating high temperatures to melt the iron a#39; remelting scrap iron does not produce carbon dioxide, a greenhouse gas, anbsp;...

Title:AQA AS Chemistry Student Unit Guide: Unit 2 Chemistry in Action
Author:Margaret Cross
Publisher:Hachette UK - 2012-01-27


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