Zusammenfassung der Ressource
Atmospheres
- Earth
- Oxygen
- O2
- Carbon dioxide
- CO2
- Nitrogen
- N2
- Argon
- Ar
- Water/steam
- H2O
- Others (less important)
- SO2
- H2
- CO
- NOx
- Mars
- Cool
- -200-+100 degrees C
- H2O
- solid (s)
- Ice caps
- Liquid (l)
- Underground
- CO2 (g)
- Venus
- Hot
- 400 degrees C
- CO2 (g)
- The modern atmosphere
- Water vapour in Earth's
atmosphere varies up to
4%
- An experiment to prove that 21% of
the air is oxygen
- At the start 100cm cubed of air contained
- 78cm cubed nitrogen
- 21cm cubed oxygen
- 1cm cubed argon
- At the end only 8cm cubed of air remained
- 78cm cubed N2
- 1cm cubed Ar
- All oxygen was used in the reaction
- Reaction:
- copper+oxygen
- Copper oxide
- 2Cu+O2
- 2CuO
- Page 155
- Name three elements and two
compounds that are present in the
atmosphere
- Oxygen
- O2
- Nitrogen
- N2
- Argon
- Ar
- Water/steam
- H2O
- Carbon dioxide
- CO2
- Describe how nitrogen and oxygen are
obtained from the atmosphere
- Fractional distillation
- Give one use each for nitrogen, oxygen
and argon
- Oxygen
- Used to treat patients
- Nitrogen
- Freezes products
- Argon
- Filament light bulbs
are filled with Argon