Calcium phosphate was calcined with coal in the presence of river sand. The resulting simple substance reacted
| December 1, 2020 | education
Calcium phosphate was calcined with coal in the presence of river sand. The resulting simple substance reacted with an excess of chlorine. The resulting product was added to an excess of potassium hydroxide. The resulting solution was treated with lime water. Write down the reaction equations
1)Ca3(PO4)2+5C+3SiO2=3CaSiO3+5CO+2P
2)2P+5Cl2=2PCl5
3)PCl5+8KOH=5KCl+K3PO4+4H2O
4)2KCl+2K3PO4+4Ca(OH)2=CA3(PO4)2+
CaCl2+8KOH
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