Structure 1. Models of the particulate nature of matter

Structure 2. Models of bonding and structure

Structure 3. Classification of matter

Reactivity 1. What drives chemical reactions?

1.1 Measuring enthalpy changes

1.2 Energy cycles

1.3 Energy from fuels

Reactivity 2. How much, how fast and how far?

Reactivity 3. What are the mechanisms of chemical change?

Concept/IB Chemistry/HL/Reactivity 1. What drives chemical reactions?/1.2 Energy cycles

1.2 Energy cycles

Syllabus: First assessment 2025
Topic: 1.2
Level: HL

What you’ll learn

5 learning objectives

Choose one objective for a focused lesson, or study the complete topic.

1.2 Energy cycles