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2014-04-23T17:32:12+03:00
Ca + 1/2 O2--->CaO
CaO + H2O ---> Ca(OH)2
Ca(OH)2 + 2 HCl ---> CaCl2 + 2 H2O 
CaCl2 + MgCO3 ---> CaCO3 + MgCl2
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