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C2 2.5 Exothermic and Endothermic reactions

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

• C2 2.5

Foundation Tier June 12, 3

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• C2 2.5

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• C2 2.5

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• C2 2.5

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• C2 2.5

Mark scheme- Foundation

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Q Answer Extra Information Mark (a) 22 1

(b)(i) exothermic 1

(b)(ii) CGives out most heat energy Accept has largest temperature change/increase

Allow has highest (final) temperature or hottest

11

(c)(i) increases 1

(c)(ii) blue Ignore pale/dark etc 1

(c)(iii) Reversible (reaction) Allows goes both ways or two/ either way 1

(c)(iv) Anhydrous copper sulfate 1

Total 8