Transcription of AS Chemistry - Edexcel
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AS Chemistry - Edexcel
AS ChemistrySample Assessment MaterialsPearson Edexcel Level 3 Advanced Subsidiary GCE in Chemistry (8CH0)First teaching from September 2015 First certifi cation from 2016 Issue 1 PearsonEdexcel 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.
2 The molecules carbon dioxide, water and chloric(I) acid can be represented by these structures. O=C=O O HH O H Cl All the bonds in these molecules are polar because the elements have different electronegativities. (a) In terms of atomic structure, give two reasons why oxygen is more electronegative than carbon. (2)
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