1. К -> КОН ->KHCO₃->K₂CO₃ -> КСI
2К + 2H₂O= 2КОН + H₂↑
КОН + CO₂ = KHCO₃ + H₂O
KHCO₃+t = K₂CO₃ + CO₂↑ + H₂O
или
KHCO₃ + KOH = K₂CO₃ + H₂O
K₂CO₃ + 2HCI = 2КСI + CO₂↑ + H₂O
2. Ca ->Ca(OH)₂ ->CaCl₂ ->CaCO₃->CaO->Ca(OH)₂
Ca + 2H₂O = Ca(OH)₂ + H₂↑
Ca(OH)₂ + 2HCI = CaCl₂ + 2H₂O
CaCl₂ + H₂CO₃ = CaCO₃↓ + 2HCI
CaCO₃ + t = CaO + CO₂↑
CaO+ H₂O = Ca(OH)₂↓