# Oxidation and reduction notes

> CAPS-aligned study notes for Oxidation and reduction in Grade 11 Technical Sciences. Browse the sections below for explanations, worked examples and exam preparation.

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## Sections in Oxidation and reduction

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- [Oxidation, reduction and redox agents](https://www.hlayiso.com/grade-11/technical-sciences/notes/oxidation-and-reduction/oxidation-reduction-and-redox-agents) — Oxidation, Reduction and Redox Agents Chemical reactions where electrons are transferred between substances are called redox reactions (short for reduction-oxidation). These reactions are everywhere…
- [Oxidation numbers](https://www.hlayiso.com/grade-11/technical-sciences/notes/oxidation-and-reduction/oxidation-numbers) — Oxidation Numbers Oxidation numbers (also called oxidation states) are a bookkeeping system used to track how electrons are distributed in chemical compounds and reactions. They help us identify…
- [Electrolysis](https://www.hlayiso.com/grade-11/technical-sciences/notes/oxidation-and-reduction/electrolysis) — Electrolysis Electrolysis is a process that uses electrical energy to drive a non-spontaneous chemical reaction. By passing an electric current through a substance (the electrolyte), we can decompose…

## Other Technical Sciences topics

- [Introduction to mechanics and sign conventions](https://www.hlayiso.com/grade-11/technical-sciences/notes/introduction-to-mechanics-and-sign-conventions)
- [Vectors and resultant of forces](https://www.hlayiso.com/grade-11/technical-sciences/notes/vectors-and-resultant-of-forces)
- [Resolution of forces and friction](https://www.hlayiso.com/grade-11/technical-sciences/notes/resolution-of-forces-and-friction)
- [Magnets and the magnetic field](https://www.hlayiso.com/grade-11/technical-sciences/notes/magnets-and-the-magnetic-field)
- [Pulses and waves](https://www.hlayiso.com/grade-11/technical-sciences/notes/pulses-and-waves)
- [Sound waves](https://www.hlayiso.com/grade-11/technical-sciences/notes/sound-waves)
- [Electrostatics](https://www.hlayiso.com/grade-11/technical-sciences/notes/electrostatics)
- [Electric circuits](https://www.hlayiso.com/grade-11/technical-sciences/notes/electric-circuits)
- [Ohm's law and circuit calculations](https://www.hlayiso.com/grade-11/technical-sciences/notes/ohms-law-and-circuit-calculations)
- [Heat and specific heat capacity](https://www.hlayiso.com/grade-11/technical-sciences/notes/heat-and-specific-heat-capacity)
- [Thermodynamics](https://www.hlayiso.com/grade-11/technical-sciences/notes/thermodynamics)
- [Classification of matter](https://www.hlayiso.com/grade-11/technical-sciences/notes/classification-of-matter)

## Frequently asked questions

### What is covered in Oxidation and reduction for Grade 11 Technical Sciences?

The Oxidation and reduction section covers all key concepts from the Grade 11 Technical Sciences CAPS curriculum, including detailed explanations, worked examples, and exam preparation tips.

### Are the Oxidation and reduction notes free?

Yes. Each section has a free preview, and a free Hlayiso account lets you read the full notes.

### How do these notes help with exam preparation?

Our Oxidation and reduction notes are CAPS-aligned and include worked examples, common mistakes to avoid, and exam tips — everything you need to prepare for your Grade 11 Technical Sciences exams.

### Are there quizzes for Oxidation and reduction?

Yes. Hlayiso has quizzes for Oxidation and reduction in Grade 11 Technical Sciences. Test your understanding after reading the notes.

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