Caco3-x-ca(oh)2+x2+CO2+x3+NaHCO3+NaCL
CaCO₃ = CaO + CO₂
CaO + H₂O = Ca(OH)₂
Ca(OH)₂ + CO₂ = CaCO₃ + H₂O
CO₂ + H₂O = H₂CO₃
H₂CO₃ + NaOH = NaHCO₃ + H₂O
NaHCO₃ + HCI = NaCI + CO₂ + H₂O