AmyMath
← Chemistry – Grade 7
CLASS 7 · LEARNING KNOWLEDGE

Oxidation and oxygen transfer – basic principles

How it works

Oxidation is a chemical reaction in which a substance takes up oxygen. A new oxide is formed. The reverse process – the release of oxygen – is called reduction. Many metals and nonmetals can be oxidized. Oxidation is an important part of many everyday processes, e.g. when iron rusts or when wood burns. Oxygen transfer is the central feature of oxidation. The reaction products differ in their properties from the starting substances.

Note
In an oxidation, a substance takes up oxygen and forms an oxide; this is recognized by the transfer of oxygen.

An example

Which substance is formed when magnesium reacts with oxygen?

Magnesium reacts with oxygen to form magnesium oxide. Explanation: Magnesium takes up oxygen and forms a new oxide.

Try it yourself now

50 Exercises

To the learning unit →

Own explanation and own practice exercises by AmyMath. Subject reference framework: Chemistry. The topic assignment may vary by federal state.