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Gases Index

The Properties of Gases Home Page
Collecting Gases
The Preparation of Gases in the Laboratory

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Footnotes:

Found in gases from volcanoes.

Can be produced when the bodies of dead organisms decay.

 

 

THE LANGUAGE OF CHEMISTRY

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The Properties of Gases

 

Hydrogen Sulfide gas

Physical Properties

Chemical Properties

Hydrogen Sulfide gas

Colour

Colourless

Odour

Pungent odour of rotting eggs
Very poisonous

Density compared to air (heavier or lighter)

Heavier than air.

Solubility in water

Slightly soluble in water. It reacts with water to form a weak acid.

Burning

Will burn in air to form sulphur and water or sulphur dioxide gas and water.

Moist pH paper

Slight acidic reaction

Red rose petals

No reaction

Specific test

None (Its odour is specific enough!)

 

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