Ca3(PO4)2 --> CaCl2 --> CaCO3 --> Ca(HCO3)2 -->CO2

Question

Ca3(PO4)2 --> CaCl2 --> CaCO3 --> Ca(HCO3)2 -->CO2

Answer 1

1. Ca₃(PO₄)₂ + 6LiCl = 2Li₃PO₄ + 3CaCl₂
2. CaCl₂ + H₂CO₃ = CaCO₃ + 2HCl
3. CaCO₃ + H₂CO₃ = Ca(HCO₃)₂ 
4. Ca(HCO₃)₂ = CaCO₂ + CO₂ + H₂O