Advanced Subsidiary GCE in Chemistry (8CH0)

AS Chemistry Sample Assessment Materials Pearson Edexcel Level 3 Advanced Subsidiary GCE in Chemistry (8CH0) First teaching from September 2015 First certifi cation from 2016 Issue 1 Pearson Edexcel Level 3 Advanced Subsidiary GCE in Chemistry (8CH0) Sample Assessment Materials First certification 2016 Edexcel, BTEC and LCCI qualifications Edexcel, BTEC and LCCI qualifications are awarded by Pearson, the UK’s largest awarding body offering academic and vocational qualifications that are globally recognised and benchmarked. For further information, please visit our qualification websites at , or . Alternatively, you can get in touch with us using the details on our contact us page at About Pearson Pearson is the world's leading learning company, with 40,000 employees in more than 70 countries working to help people of all ages to make measurable progress in their lives through learning. 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Original origami artwork: Mark Bolitho Origami photography: Pearson Education Ltd/Naki Kouyioumtzis ISBN 978 1 446 91449 6 All the material in this publication is copyright © Pearson Education Limited 2015 Contents 1 Introduction 1 2 General marking guidance 3 3 Paper 1 Core Inorganic and Physical Chemistry 5 4 Paper 1 Mark Scheme 33 5 Paper 2 Core Organic and Physical Chemistry 53 6 Paper 2 Mark Scheme 77 Introduction The Pearson Edexcel Level 3 Advanced Subsidiary GCE in Chemistry is designed for use in schools and colleges. It is part of a suite of GCE qualifications offered by Pearson. These sample assessment materials have been developed to support this qualification and will be used as the benchmark to develop the assessment students will take. Pearson Edexcel Level 3 Advanced Subsidiary GCE in Chemistry Sample Assessment Materials – Issue 1 – February 2015 © Pearson Education Limited 2015 1 Introduction The Pearson Edexcel Level 3 Advanced Subsidiary GCE in Chemistry is designed for use in schools and colleges. It is part of a suite of GCE qualifications offered by Pearson. These sample assessment materials have been developed to support this qualification and will be used as the benchmark to develop the assessment students will take. Pearson Edexcel Level 3 Advanced Subsidiary GCE in Chemistry Sample Assessment Materials – Issue 1 – February 2015 © Pearson Education Limited 2015 2 General marking guidance ● All candidates must receive the same treatment. Examiners must mark the last candidate in exactly the same way as they mark the first. ● Mark schemes should be applied positively. Candidates must be rewarded for what they have shown they can do rather than be penalised for omissions. ● Examiners should mark according to the mark scheme – not according to their perception of where the grade boundaries may lie. ● All the marks on the mark scheme are designed to be awarded. Examiners should always award full marks if deserved, i.e. if the answer matches the mark scheme. Examiners should also be prepared to award zero marks if the candidate’s response is not worthy of credit according to the mark scheme. ● Where some judgement is required, mark schemes will provide the principles by which marks will be awarded and exemplification/indicative content will not be exhaustive. ● When examiners are in doubt regarding the application of the mark scheme to a candidate’s response, a senior examiner must be consulted before a mark is given. ● Crossed-out work should be marked unless the candidate has replaced it with an alternative response. Pearson Edexcel Level 3 Advanced Subsidiary GCE in Chemistry Sample Assessment Materials – Issue 1 – February 2015 © Pearson Education Limited 2015 3 General marking guidance ● All candidates must receive the same treatment. Examiners must mark the last candidate in exactly the same way as they mark the first. ● Mark schemes should be applied positively. Candidates must be rewarded for what they have shown they can do rather than be penalised for omissions. ● Examiners should mark according to the mark scheme – not according to their perception of where the grade boundaries may lie. ● All the marks on the mark scheme are designed to be awarded. Examiners should always award full marks if deserved, i.e. if the answer matches the mark scheme. Examiners should also be prepared to award zero marks if the candidate’s response is not worthy of credit according to the mark scheme. ● Where some judgement is required, mark schemes will provide the principles by which marks will be awarded and exemplification/indicative content will not be exhaustive. ● When examiners are in doubt regarding the application of the mark scheme to a candidate’s response, a senior examiner must be consulted before a mark is given. ● Crossed-out work should be marked unless the candidate has replaced it with an