Решите, даю 15 баллов.Ca→CaCl2→Ca→CaC2→Ca(OH)2→CaCO3→CaO
Ca +2HCl = CaCl₂ + H₂
CaCl₂ = Ca + Cl₂
Ca + 2C = CaC₂
CaC₂ + 2H₂O = Ca(OH)₂ + C₂H₂
Ca(OH)₂ + CO₂ = CaCO₃ + H₂O
CaCO₃ = CaO + H₂O