9) 2Ca + O2 =2 CaO
CaO + H2O = Ca(OH)2
3Ca(OH)2 + 2H3PO4 = Ca3(PO4)2 + 6H2O
Ca3(PO4)2 + 6NaOH =2 Na3PO4 + 3Ca(OH)2
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9) 2Ca + O2 =2 CaO
CaO + H2O = Ca(OH)2
3Ca(OH)2 + 2H3PO4 = Ca3(PO4)2 + 6H2O
Ca3(PO4)2 + 6NaOH =2 Na3PO4 + 3Ca(OH)2