1)2Ca+O2-->2CaO;
2)CaO+H2O-->Ca(OH)2;
3)Ca+2HOH-->Ca(OH)2+H2↑
4)Ca(OH)2+2HCL-->CaCI2+2H2O
5)CaCI2+Na2SO4-->CaSO4+2NaCL
Объяснение:
1)2Ca+O2-->2CaO;
2)CaO+H2O-->Ca(OH)2;
3)Ca+2HOH-->Ca(OH)2+H2↑
4)Ca(OH)2+2HCL-->CaCI2+2H2O
5)CaCI2+Na2SO4-->CaSO4+2NaCL
Объяснение: