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IGCSE CHEMISTRY (demo)

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  1. 2. Atoms, Elements & Compounds (DEMO)
    8 Topics
  2. 3. Stoichiometry (DEMO)
    1 Topic
  3. 6. Chemical Reactions (DEMO)
    6 Topics
IGCSE CHEMISTRY (demo) 6. Chemical Reactions (DEMO) 6.4.1 Defining Oxidation (Demo)
Lesson 3, Topic 2
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6.4.1 Defining Oxidation (Demo)

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You are correct if you choose oxygen. Oxygen supports combustion. Combustion reactions are examples of redox reactions. Oxidation and reduction occur in a redox reaction.

Oxidation

When a substance gains oxygen, we say the substance has been oxidized.
Oxidation is the gain of oxygen.

In the reaction below, magnesium burns in oxygen to form magnesium oxide (MgO).

reaction between magnesium and oxygen to form magnesium oxide

Make a statement about the following reaction. Use the words “oxidized” and “oxidation” in your statement.

calcium plus oxygen yield calcium oxide

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