2K+2H₂O→2KOH+H₂↑
2KOH+CO₂→K₂CO₃+H₂O
K₂CO₃+CaCl₂→2KCl+CaCO₃↓
CaCO₃→CO₂↑+CaO
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2K+2H₂O→2KOH+H₂↑
2KOH+CO₂→K₂CO₃+H₂O
K₂CO₃+CaCl₂→2KCl+CaCO₃↓
CaCO₃→CO₂↑+CaO