C1.1.3 Chemical Reactions Version 2.0 Copyright © AQA and its licensors. All rights reserved. Using Exam pro items to support successful outcomes • Learners will be able to test their progress against learning outcomes using questions from past AQA GCSE examinations Version 2.0 Copyright © AQA and its licensors. All rights reserved. Foundation and Higher QSP 1F .07 1. Version 2.0 Copyright © AQA and its licensors. All rights reserved. Version 2.0 Copyright © AQA and its licensors. All rights reserved. Version 2.0 Copyright © AQA and its licensors. All rights reserved. Mark scheme Q Answer Extra Information Mark 1 (a) (i) Both have one/1 electron in the outer energy level/shell Allow both react in a similar way 1 1 (a) (ii) Eleven/11 1 1 (a) (iii) Twelve/12 1 1 (a) (iv) 8 electrons in second energy level/shell 1 electron in outer energy level/shell 2 Two sodium atoms react Two ( bonded) chlorine atoms react Two sodium ions and two chloride ions ( are produced) Allow 1 mark maximum if electrons in first energy shell/level have been changed Allow one chlorine molecule reacts Allow two molecules of sodium chloride ( are produced) or two sodium chloride particles ( are produced) Total Version 2.0 Copyright © AQA and its licensors. All rights reserved. 1 1 1 1 1 8