//////////////////> Ca(OH)2 ->CaCl2 CA ->CaO| \\\\\\\\\\\\\\\\\\> CA(NO3)2
2Ca+О2- 2CaO CaO+H2O- Ca(OH)2 Ca(OH)2+ 2NaCl - CaCl2 + 2NaOH CaCl2 - (электролиз)= Ca + Cl2 2Ca+О2- 2CaO CaO+H2O- Ca(OH)2 Ca(OH)2+ N2O5= Ca(NO3)2 +H2O