Lesson 1

Unit 1 — Chemical Reactions and Their Environmental Impacts

Lesson parts

1.1 1.1 Starting point: what is a chemical reaction?

1.2 1.2 Direct combination reactions

1.3 1.3 Decomposition reactions

1.4 1.4 Single replacement reactions

1.5 1.5 Double replacement reactions

1.6 1.6 Oxidation–reduction (redox) reactions

1.7 1.7 Summary of Lesson 1

1.8 2.1 Why do some things burn easily?

1.9 2.2 The combustion triangle

1.10 2.3 Ignition point and flammability

1.11 2.4 Life application: how a match lights

1.12 2.5 Combustion of metals and non-metals

1.13 2.6 Complete and incomplete combustion

1.14 2.7 Detecting the products of combustion

1.15 2.8 Properties of the combustion products

1.16 2.9 Environmental pollution from combustion

1.17 2.10 Summary of Lesson 2

1.18 3.1 A behaviour that threatens public health

1.19 3.2 The tobacco plant and the products of tobacco combustion

1.20 3.3 What tobacco contains

1.21 3.4 Harmful effects on health

1.22 3.5 Environmental damage caused by smoking

1.23 3.6 Types of smoking and ways of exposure

1.24 3.7 Preventing smoking: how to say no

1.25 3.8 Summary of Lesson 3

1.26 📌 Comprehensive Scientific Terminology Dictionary:

1.27 ⚖️ Governing Physical Laws & Mathematical Relations:

1.28 🔍 In-Depth Explanations, Deductions & Multi-Book Insights: