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We offers the Oct.2021 A-level Chemistry Edexcel IAL Unit 2: Energetics, Group Chemistry, Halogenoalkanes and Alcohols Unit 2 past exam PDF for download and provides instant AI tutor support on this page. Simply take a screenshot of any question you’re struggling with and upload it in the input box on the right. The AI tutor will guide you through the solution with multi-round Q&A support until your issue is fully resolved.