Limestone

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  • Limestone
    • Limestone cycle
      • Calcium Carbonate CaCO3
        • Calcium hydroxide solution limewater    Ca(OH)2
          • Calcium hydroxide slaked lime Ca(OH)2
            • Calcium oxide quicklime CaO + CO2
              • Calcium Carbonate CaCO3
                • Calcium hydroxide solution limewater    Ca(OH)2
                  • Calcium hydroxide slaked lime Ca(OH)2
                    • Calcium oxide quicklime CaO + CO2
                      • Used for cement
                    • Neutralises acidic soil
                  • Test for carbon dioxide- if you bubble gas through it the solution will turn cloudy if carbon dioxide is present, the cloudiness is caused by a formation of calcium carbonate.
              • Used for cement
            • Neutralises acidic soil
          • Test for carbon dioxide- if you bubble gas through it the solution will turn cloudy if carbon dioxide is present, the cloudiness is caused by a formation of calcium carbonate.
    • Uses
      • Blocks for building
      • Mortar (limestone, sand, cement and water)
      • Concrete (limestone, sand, cement, rock chippings)
      • Glass
      • Slaked lime-calcium carbonate+water can be used to neautralise acidic soils and lakes
    • Quarrying
      • Disadvantages
        • Makes huge ugly holes which permanently change the landscape
        • Quarrying processes like blasting rocks apart with explosives make lots of noise and dust in quiet scenic areas
        • Destroys the habitats of animals and birds
        • The limestone needs to be transported usually by lorries and this causes noise and pollution
      • Advantages
        • Limestone provides things that people want like houses and roads
        • Limestone products are used to neutralise acidic soil
        • Limestone is used in power station chimneys to neutralise sulphur dioxide which is a cause of acid rain
        • Provide jobs for people
    • Limestone products
      • Widley available and is cheaper than granite or marble
      • Easy to cut
      • Hardwearing
      • Very quick and cheap way of contructing buildings
      • Concrete doesn't corrode like a lot of metals do
      • Concrete is very unattractive
  • Heat- thermal decomposition
  • Add water
  • Add more water
  • Add CO2 carbon dioxide

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