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p4o7 ionic or covalent
p4o6 ionic or covalent
p4o10 ionic or covalent
p2o4 ionic or covalent
p4o6 ionic or covalent molecular
p4 covalent or ionic
is p2o4 ionic covalent or polyatomic
p4s5 ionic or covalent
p2o5 ionic or covalent
p4s7 ionic or molecular
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