AQA Jun 2016 Paper 5 Q8

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section b answer all questions in the spaces provided do not write outside the box this question is about cobalt chemistry a give the electron configuration of the co atom and of the co ion state three characteristic features of the chemistry of cobalt and its compounds marks wmp jun chem do not write outside the box b ethane diamine can act as a bidentate ligand when co h o aq ions are treated with an excess of ethane diamine the water ligands are replaced explain what is meant by the term bidentate ligand explain with the aid of an equation the thermodynamic reasons why this reaction occurs draw a diagram to show the structure of the complex ion formed marks turn over wmp jun chem

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