Make the reaction equation: Ca (OH) 2 – CaCl2 CA – CaO | – CA (NO3) 2

1. Obtaining calcium chloride.
Interaction of hydroxide with acid:
Ca (OH) 2 + 2HCl = CaCl2 + 2H2O.
Or interaction with ammonium salt:
Ca (OH) 2 + 2NH4Cl = CaCl2 + 2NH3 + 2H2O.
2. Reduction with active metals to calcium:
CaCl2 + Mg (t = 860-1000 ° C) = Ca + MgCl2.
3CaCl2 + 2Al (t = 600-700 ° C) = 3Ca + 2AlCl3.
3. Obtaining oxide from simple substances:
2Ca + O2 = 2CaO.
4. Treatment of calcium oxide with nitrogen oxide:
CaO + 3NO2 = Ca (NO3) 2 + NO.



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