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Oxygen Gas

  • Game Code: 625293
  •  English    6     Public
    Oxygen structure.
  •   Study   Slideshow
  • is there Oxygen in the Air ? How much ?
    Yes, 21%
  •  10
  • Is Oxygen solid, liquid or gas ?
    It is a gas.
  •  10
  • Which gas represents one fifth of the atmosphere.
    Oxygen
  •  10
  • Oxygen gas is composed of 3 atoms ?
    Wrong, only two atoms.
  •  10
  • The ratio of O₂ gas in the atmosphere is fixed. Right or wrong?
    Right
  •  10
  • Which gas do we need to breathe?
    Oxygen
  •  10
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