1) 3 Ca+2 P = Ca3P2
2)Ca3P2+6 H2O = 3 Ca(OH)2+2 PH3
3)2 PH3+4 O2 = P2O5+3 H2O
4)4 P+5 O2 = 2 P2O5
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1) 3 Ca+2 P = Ca3P2
2)Ca3P2+6 H2O = 3 Ca(OH)2+2 PH3
3)2 PH3+4 O2 = P2O5+3 H2O
4)4 P+5 O2 = 2 P2O5