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C1.1.3 Chemical Reactions

Using Exam pro items to support successful outcomes

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• Learners will be able to test their progress against learning outcomes using questions from past AQA GCSE examinations

Foundation and Higher QSP 1F .071.

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Mark scheme

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Q Answer Extra Information Mark1 (a) (i) Both have one/1 electron in the

outer energy level/shellAllow 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/shell1 electron in outer energy level/shell

Allow 1 mark maximum if electrons in first energy shell/level have been changed

1

1

2 Two sodium atoms reactTwo ( bonded) chlorine atoms reactTwo sodium ions and two chloride ions ( are produced)

Allow one chlorine molecule reactsAllow two molecules of sodium chloride ( are produced) or two sodium chloride particles ( are produced)

111

Total 8