Lesson 1

Unit 1 — Chemical Reactions and Their Environmental Impacts

Lesson parts

1.1 1.1 Starting point: what is a chemical reaction?

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1.2 1.2 Direct combination reactions

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1.3 1.3 Decomposition reactions

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1.4 1.4 Single replacement reactions

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1.5 1.5 Double replacement reactions

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1.6 1.6 Oxidation–reduction (redox) reactions

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1.7 1.7 Summary of Lesson 1

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1.8 2.1 Why do some things burn easily?

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1.9 2.2 The combustion triangle

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1.10 2.3 Ignition point and flammability

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1.11 2.4 Life application: how a match lights

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1.12 2.5 Combustion of metals and non-metals

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1.13 2.6 Complete and incomplete combustion

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1.14 2.7 Detecting the products of combustion

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1.15 2.8 Properties of the combustion products

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1.16 2.9 Environmental pollution from combustion

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1.17 2.10 Summary of Lesson 2

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1.18 3.1 A behaviour that threatens public health

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1.19 3.2 The tobacco plant and the products of tobacco combustion

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1.20 3.3 What tobacco contains

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1.21 3.4 Harmful effects on health

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1.22 3.5 Environmental damage caused by smoking

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1.23 3.6 Types of smoking and ways of exposure

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1.24 3.7 Preventing smoking: how to say no

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1.25 3.8 Summary of Lesson 3

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1.26 📌 Comprehensive Scientific Terminology Dictionary:

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1.27 ⚖️ Governing Physical Laws & Mathematical Relations:

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

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