C5: Chemicals of the Natural Environment

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  • Created by: Abi Lewis
  • Created on: 06-06-13 11:29
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  • C5: Chemicals of the Natural Environment
    • Hydrosphere
      • Water
      • Ionic compounds (Salt)
        • If it gains an atom it becaomes negatively charged
        • If it loses an atom it becomes positively charged
    • Litosphere
      • Crust and Mantle
      • Silcate rocks (Oxygen and Silicon)
        • Silicon dioxide
          • Amethyst
          • Diamond
    • Atmosphere
      • 78% Nitrogen
      • 21% Oxygen
      • 1% Argon
    • Electrolysis
      • Positively charged ions move towards the negative electrode
      • Negatively charged ions move towards the positive eletrode
    • Precipitation
      • Ag+(aq) + Cl-(aq) ? AgCl(s)
      • Ba2+(aq) + SO42-(aq) ? BaSO4(s)
      • A solid produced in a liquid is a precipitation reaction
    • Calculating relative formula mass
      • Fe2O3 contains 2Fe
      • 160 tonnes of Fe2O3 contains 112 tonnes of Fe
      • 5 tonnes of Fe2O3 contains 3.5 tonnes of Fe
        • 5x112/160
    • Bonding
      • Covalent
        • Water
        • Methane
        • Hydrogen chloride
        • Strong, needs a lot of energy to break them
      • Ionic
        • Sodium chloride
        • Calcium oxide

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