A-level CHEMISTRY Paper 1 Inorganic and Physical Chemistry Questions paper and marking scheme MERGED[A verified]

Materials For this paper you must have: • the Periodic Table/Data Booklet, 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. • If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number against your answer(s). • 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 105. Answer all questions in the spaces provided. box This question is about enthalpy changes. . Figure 1 shows a Born–Haber cycle for the formation of strontium chloride, SrCl2 Figure 1 Table 1 shows some thermodynamic data. Table 1 Enthalpy change / kJ mol–1 First ionisation energy of strontium +548