2Ca + O₂ => CaO
CaO + CO₂ => CaCO₃
CaCO₃ = t => CaO + CO₂
CO₂ + NaOH => NaHCO₃
NaHCO₃ + NaOH => Na₂CO₃ + H₂O
2Ca + O₂ => CaO
CaO + CO₂ => CaCO₃
CaCO₃ = t => CaO + CO₂
CO₂ + NaOH => NaHCO₃
NaHCO₃ + NaOH => Na₂CO₃ + H₂O