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Follow this publisher. ©JABchem 2020 2 2018 Higher Chemistry Marking Scheme 2018 Higher Chemistry Marking Scheme MC Qu Answer % Pupils Correct Reasoning 1 B 70 A Forward reaction has an activation energy of +40kJ mol-1 but always positive B Enthalpy change is difference between P and R and downhill means exothermic CSEC CHEMISTRY PAPER 01 ANSWERS - Free download as Word Doc (. ; View Past Paper; AQA GCSE Combined Science Trilogy: Biology Paper 2 Foundation Tier – June 2018. CSEC Chemistry June 2018 P2 Answers - Free download as PDF File (. pdf; CSEC Chemistry June 2022 P032. pdf; CSEC Chemistry June 2019 P2. Paper 1 – Chemistry - Higher (8462/1H) Download Paper - Download Marking Scheme. Instead of 1/2 ther is a Y in the question paper. 1 – 4. June 2018 AQA Chemistry (9-1) GCSE Past Papers (8462) Paper 1 – Chemistry - Foundation (8462/1F) Download Paper - Download Marking Scheme. 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