Question

CaCo3-CaO3-Ca(OH)2-CaCl2-Ca(PO4)2

Answer 1

СаСО3 =(t°)= CaO + CO2

CaO + H2O = Ca(OH)2

Ca(OH)2 + 2HCl = CaCl2 + 2H2O

3CaCl2 + 2Na3PO4 = Ca3(PO4)2 + 6NaCl