Version 2.0 Copyright © AQA and its licensors. All rights reserved. C2 2.3 Covalent structures.

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Presentation transcript:

Version 2.0 Copyright © AQA and its licensors. All rights reserved. C2 2.3 Covalent structures

Using Exam pro items to support successful outcomes Version 2.0 Copyright © AQA and its licensors. All rights reserved. Learners will be able to test their progress against learning outcomes using questions from past AQA GCSE examinations C2 2.3

Foundation Tier June 12, 5 Version 2.0 Copyright © AQA and its licensors. All rights reserved. C2 2.3

Version 2.0 Copyright © AQA and its licensors. All rights reserved. C2 2.3

Version 2.0 Copyright © AQA and its licensors. All rights reserved. C2 2.3

Mark scheme- Foundation Version 2.0 Copyright © AQA and its licensors. All rights reserved. C2 2.3 QAnswerExtra InformationMark (a)(i) Covalent Two different answers indicated gains 0 marks 1 (a)(ii)CarbonTwo different answers indicated gains 0 marks 1 (a)(iii)3Two different answers indicated gains 0 marks 1 (b)Layers can slide/ slip Because there are no bonds between the layers Or so ( pieces of) graphite rubs / breaks off Or graphite left on the paper Accept because weak forces /bonds between layers 1111 Total 5