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Gases Around Us

Published on Nov 18, 2015

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PRESENTATION OUTLINE

1.

TYPE OF GASES

  • Helium
  • Oxygen
  • Carbon di oxide
  • Carbon monoxide
2.

HELIUM PROPERTIES

  • It has a low melting point
  • It is light in weight
  • It is the only liquid that can't be solidified by lowing temperature
  • It solidifies by increasing temperature
  • Helium is colourless
3.

OXYGEN

  • You can't see it
  • You depend on it to breathe
  • Oxygen is an element with the chemical symbol o
  • Oxygen has a atomic no.8
  • Oxygen is used in hospitals for patients
4.

CARBON DI OXIDE

  • It is a acid oxide
  • It reacts with water to release carbonic acid
  • It also reacts with alkalis to release carbonates and bicarbonates
  • Carbon di oxide's chemical formula is co2
  • Plants use carbon di oxide to make food
5.

CARBON MONOXIDE

  • Is slightly less Danes than air
  • It is toxic to humans and animals
  • It is colourless,odourless.
  • It is flammable
  • Is sparingly soluble in water
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