2Ca+O2 = 2CaO CaO+H2O = Ca(OH)2 Ca(OH)2+2HNO3 = Ca(NO3)2+2H2O Ca(NO3)2+H2SO4 = CaSO4 + 2HNO3
1)2Сa+O2->2CaO2)CaO + H2O = Ca(OH) 23)Ca(OH)2 +2HNO3=Ca(NO3)2 +2H2O 4)Ca(NO3)2+MgSO4=CaSO4+Mg(NO3)2
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2Ca+O2 = 2CaO
CaO+H2O = Ca(OH)2
Ca(OH)2+2HNO3 = Ca(NO3)2+2H2O
Ca(NO3)2+H2SO4 = CaSO4 + 2HNO3
1)2Сa+O2->2CaO
2)CaO + H2O = Ca(OH) 2
3)Ca(OH)2 +2HNO3=Ca(NO3)2 +2H2O
4)Ca(NO3)2+MgSO4=CaSO4+Mg(NO3)2