Grade 12 Physical Sciences Study Guide
Topic: Chemical Change - Energy and Chemical Reactions
Curriculum: CAPS-Aligned
Table of Contents
1. Introduction
2. Key Concepts & Definitions
3. Types of Chemical Reactions
4. Energy Changes in Reactions
5. Energy Profile Diagrams
6. Exothermic vs Endothermic Reactions
7. Worked Examples
8. Common Exam Questions & Answers
9. Quick Summary of Key Points
10. Bonus Exam Tips
1. Introduction
This study guide covers essential content for the Chemical Change section of Grade 12 Physical
Sciences, focusing on energy changes during chemical reactions. It explains concepts, provides
examples, and includes exam-style questions to help you prepare effectively.
2. Key Concepts & Definitions
Chemical Change: A process where one or more substances are transformed into new substances.
Physical Change: A change in appearance without altering the chemical structure.
System: The part of the reaction being studied (usually the reactants and products).
Topic: Chemical Change - Energy and Chemical Reactions
Curriculum: CAPS-Aligned
Table of Contents
1. Introduction
2. Key Concepts & Definitions
3. Types of Chemical Reactions
4. Energy Changes in Reactions
5. Energy Profile Diagrams
6. Exothermic vs Endothermic Reactions
7. Worked Examples
8. Common Exam Questions & Answers
9. Quick Summary of Key Points
10. Bonus Exam Tips
1. Introduction
This study guide covers essential content for the Chemical Change section of Grade 12 Physical
Sciences, focusing on energy changes during chemical reactions. It explains concepts, provides
examples, and includes exam-style questions to help you prepare effectively.
2. Key Concepts & Definitions
Chemical Change: A process where one or more substances are transformed into new substances.
Physical Change: A change in appearance without altering the chemical structure.
System: The part of the reaction being studied (usually the reactants and products).
