Reactivity 1 (Higher Level)

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Last Updated: August 30, 2026

Reactivity 1.1  Measuring Enthalpy Changes

Reactivity 1.2  Energy Cycles in Reactions

Reactivity 1.3  Energy from Fuels

Reactivity 1.4  Entropy and Spontaneity

Overview
Curriculum

This course provides a complete set of notes and video tutorials on Reactivity 1. Reactivity 1 is the second of six units in the IB Chemistry Higher Level course. This course also has quizzes that provide students with feedback on paper 1a style questions. There are also paper 2 style questions with mark schemes allowing students to monitor their progress throughout the course. Each section of the course also includes a summary of the key ideas and vocabulary.

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