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Unit 5 — Chemical Energetics

Exothermic and Endothermic Reactions — O Level Chemistry Chemistry

Energy changes in chemical reactions, and interpreting reaction profile diagrams.

Topic Overview

Energy changes in chemical reactions, and interpreting reaction profile diagrams. This sits within O Level Chemistry (Cambridge), alongside the other topics on that syllabus.

Topical Past Papers

Real exam questions on Exothermic and Endothermic Reactions, compiled by topic rather than by year, testing understanding rather than recall alone. Newer files include their own answers.

MCQs

Quick-check multiple-choice questions on Exothermic and Endothermic Reactions, for testing recall and spotting gaps fast.

MCQs coming soon

O Level Chemistry Notes

Presentation notes for Exothermic and Endothermic Reactions, for online study — view only.

Notes coming soon