Ca---X1-----X2----CaCl------Ca(No3)2
1)2Ca+O2===>2CaO
2)CaO+CO2===>CaCO3
3)CaCO3+2HCl===>CaCl2+H2O+CO2
4)CaCl2+2HNO3===>Ca(NO3)2+2HCl
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1)2Ca+O2===>2CaO
2)CaO+CO2===>CaCO3
3)CaCO3+2HCl===>CaCl2+H2O+CO2
4)CaCl2+2HNO3===>Ca(NO3)2+2HCl