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Scrieti ecuatiile reactiilor corespunzatoare transformarilor:
Ca---->CaO----->Ca(OH)2--------l-->CaCl2
--------l-->CaCO3


Răspuns :

2Ca+O2---->2CaO
CaO+H2O----> Ca(OH)2
Ca(OH)2 +2HCl----> CaCl2+2H2O
CaCl2+Na2CO3------> CaCO3+2NaCl