chem c1 jan 11

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products of limestone:

  • cement: limestone + clay + sand + water
  • mortar: limestone + clay + sand + water >> mortar takes longer to dry, because it is made with more water, and therefore needs more time. In this time, it takes in CO2 which help harden it.
  • concrete: limestone  + cement + chrushed rock + (reinforced steel)
  • glass: limestone + sodium carbonate (soda) + silicon dioxide (sand) + HEAT>>

combustion

complete combustion:

  • plenty of O2
  • produces CO2 + water
  • CO2 leads of course to global warming -- melting of polar ice caps >> rising sea levels                                              -- biodiversity in animals and plants >> variation >> natural…

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