Пожалуйста хелп!!!!!!!!!!!!!
1)2Ca+O2=2CaO 2)CaO+H2O=Ca(OH)2 3)Ca(OH)2+2HCl=CaCl2+2H2O 4)Ca+2H2O=Ca(OH)2+H2 5)Ca+2HCl=CaCl2+H2 6)CaO+2HCl=CaCl2+H2O 7)CaO+H2SO4=CaSO4+H2O 8)CaO+SO3=CaSO4 9)Ca(OH)2+H2SO4=CaSO4+2H2O