Grade 12

Grade 12 Chemistry Unit 4: Polymers Explanation Revision (Exam Focus) Challenge Exam Questions Welcome, dear student! Have you ever wondered what plastic bags, rubber tires, the DNA in your cells, and the protein in your food all have in common? They are all polymers! The word “polymer” comes from Greek: poly means “many” and meros […]

Grade 12 Chemistry Unit 5: Introduction to Environmental Chemistry Explanation Revision (Exam Focus) Challenge Exam Questions Welcome, dear student! We have now reached the final unit of your Grade 12 Chemistry course. This unit is very special because it connects chemistry directly to the world around you — the air you breathe, the water you

Grade 12 Chemistry Unit 3: Industrial Chemistry Explanation Revision (Exam Focus) Challenge Exam Questions Welcome, dear student! In this unit, we move from the laboratory into the real world of Industrial Chemistry. Have you ever wondered how the fertilizer that helps grow our food is made? Or how the cement used to build our schools

Grade 12 Chemistry Unit 2: Electrochemistry Explanation Revision (Exam Focus) Challenge Exam Questions Welcome back, dear student! In Unit 1 we studied acid-base equilibria. Now in Unit 2, we will explore a very exciting topic — Electrochemistry. This is the branch of chemistry that deals with the relationship between electrical energy and chemical changes. Think

Grade 12 Chemistry Unit 1: Acid-Base Equilibria Explanation Revision (Exam Focus) Challenge Exam Questions Welcome, dear student! In this unit, we will learn about acid-base equilibria. This is one of the most important topics in Grade 12 Chemistry. Take your time, read each section carefully, and try the practice questions. Let’s begin! 1.1 Acid-Base Concepts