AQA GCSE COMBINED SCIENCE: TRILOGY 8464/C/1F Chemistry Paper 1F Version: 1.0 Final *JUN238464C1F01* IB/M/Jun23/E5 8464/C/1F QUESTION PAPER & MARKING SCHEME/ [MERGED]

GCSE COMBINED SCIENCE: TRILOGY 8464/C/1F Chemistry Paper 1F Version: 1.0 Final *JUN238464C1F01* IB/M/Jun23/E5 8464/C/1F For Examiner’s Use Question Mark 1 2 3 4 5 6 7 TOTAL Monday 22 May 2023 Morning Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator • the periodic table (enclosed). Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in the spaces provided. • 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). • Do all rough work in this book. Cross through any work you do not want to be marked. • In all calculations, show clearly how you work out your answer. Information • The maximum mark for this paper is 70. • The marks for questions are shown in brackets. • You are expected to use a calculator where appropriate. • You are reminded of the need for good English and clear presentation in your answers. Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. GCSE COMBINED SCIENCE: TRILOGY Foundation Tier Chemistry Paper 1F F 2 *02* IB/M/Jun23/8464/C/1F 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 3 *03* Turn over ► IB/M/Jun23/8464/C/1F Do not write outside the 0 1 All substances are made from atoms. box 0 1 . 1 Figure 1 represents a beryllium atom. Figure 1 What is the number of protons and the number of neutrons in the beryllium atom? [2 marks] Number of protons Number of neutrons 0 1 . 2 Figure 2 represents a beryllium ion. Figure 2 What is the relative charge on a beryllium ion? [1 mark] Tick () one box. 0 +1 +2 4 *04* IB/M/Jun23/8464/C/1F Do not write outside the Figure 3 shows the arrangement of atoms in the three states of matter. box Figure 3 0 1 . 3 What state of matter is represented by state C in Figure 3? [1 mark] Tick () one box. Gas Liquid Solid 5 *05* Turn over ► IB/M/Jun23/8464/C/1F Do not write outside the 0 1 box . 4 What is the name of the process when state B changes into state A? Use Figure 3. [1 mark] Tick () one box. Condensing Freezing Melting 0 1 . 5 How can state B be changed into state C? Use Figure 3. [1 mark] Question 1 continues on the next page 6 *06* IB/M/Jun23/8464/C/1F Do not write outside the Experimental evidence led to the scientific model of the atom changing over time. box 0 1 . 6 Figure 4 shows three models for the atom. Figure 4 What is the order for the development of the model of the atom? [1 mark] Tick () one box. 7 *07* Turn over ► IB/M/Jun23/8464/C/1F Do not write outside the box 8 0 1 . 7 Complete the sentence. Choose the answer from the box. [1 mark] Bohr Chadwick Mendeleev The existence of neutrons was discovered by . Turn over for the next question 8 *08* IB/M/Jun23/8464/C/1F Do not write outside the 0 2 A student investigated the temperature change when magnesium was added to box zinc sulfate solution. Figure 5 shows the apparatus. Figure 5 0 2 . 1 Which piece of equipment is labelled X? [1 mark] Tick () one box. Beaker Ruler Thermometer 0 2 . 2 Which piece of equipment is the best to use to measure volumes of solution? [1 mark] Tick () one box. Conical flask Evaporating basin Measuring cylinder 9 *09* Turn over ► IB/M/Jun23/8464/C/1F Do not write outside the The student added 1.0 g of magnesium to 50 cm3 of zinc sulfate solution and box measured the temperature increase. The student repeated the experiment two more times. Table 1 shows the results. Table 1 Temperature increase in °C Experiment 1 Experiment 2 Experiment 3 Mean 7.6 7.3 7.6 Y 0 2 . 3 Calculate value Y in Table 1. [2 marks] Y = °C 0 2 . 4 The student then added 1.2 g of magnesium to 50 cm3 of zinc sulfate solution. The temperature increased by 9.0 °C. Calculate the temperature increase wh