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The Chemistry of Oxygen

Last updated

Feb 22, 2023
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- The Chemistry of Hydrogen
- The Chemistry of the Bicarbonate Ion

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Chemical Concept Demonstrated

Chemistry of oxygen

Demonstration

A thin strip of Mg ribbon is ignited over a burner.

Observations

The Mg ribbon ignites and burns with a bright white flame.

Explanation

2 Mg (s) + O₂ (g) ---> 2 MgO (s)

Mg (s) + N₂ (g) ---> Mg₃N₂ (s) (The Mg ribbon reacts with both the oxygen and the nitrogen in the air.)

Oxygen is highly electronegative. It acts as an oxidizing agent for most substances with which it reacts. The oxygen oxidizes the magnesium ribbon to form the magnesium oxide salt.

The fact that the magnesium also undergoes oxidation with respect to nitrogen only attests to the magnesium's reactivity, not to any property of oxygen.

Contributors

Dr. George Bodner (Perdue University)

Chemical Concept Demonstrated

Demonstration

Observations

Explanation

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