1.
2Ca+O2=2CaO
CaO+H2O=Ca(OH)2
Ca(OH)2+2NaNO3=Ca(NO3)2+2NaOH
2.
Ca+2H2O=Ca(OH)2+H2(газ)
Ca(OH)2+2HCl=CaCl2+2H2O
1.
2Ca+O2=2CaO
CaO+H2O=Ca(OH)2
Ca(OH)2+2NaNO3=Ca(NO3)2+2NaOH
2.
Ca+2H2O=Ca(OH)2+H2(газ)
Ca(OH)2+2HCl=CaCl2+2H2O