AS CHEMISTRY Paper 1 Inorganic and Physical Chemistry questions

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AS CHEMISTRY Paper 1 Inorganic AS CHEMISTRY Paper 1 Inorganic and Physical Chemistry Monday 20 May 2019 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • ... the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. • All working must be shown. • Do all rough work in this book. Cross through any work you do not want to be marked. Information • The marks for questions are shown in brackets. • The maximum mark for this paper is 80. Advice You are advised to spend about 65 minutes on Section A and 25 minutes on Section B. IB/G/Jun19/E10 7404/1 There are no questions printed on this page DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED Do not write outside the box Section A Answer all questions in this section. Do not write outside the box This question is about compounds that contain fluorine. . Sodium fluoride contains sodium ions (Na+) and fluoride ions (F–). Na+ and F– have the same electron configuration. Explain why a fluoride ion is larger than a sodium ion. [2 marks] . Explain, in terms of structure and bonding, why the melting point of sodium fluoride is high. and Physical Chemistry questions [Show More]

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