осуществите превращения Ca->,CaO->,Ca(OH)2->,CaSo4->,CaCl2
Ответы:
2Ca+O2=2CaO
CaO+H2O=Ca(OH)2
Ca(OH)2+2HCl=CaCl2+2H2O
CaCl2+H2SO4=CaSO4+2HCl
Ca + O2 = 2CaO
CaO + H2O = Ca(OH)2
Ca(OH)2 + H2SO4 = CaSO4 + H2O
CaSO4 + HCl = CaCl2 + H2SO4