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n4o6 ionic or covalent
is n4o6 a covalent bond
n2o4 ionic or covalent
p4o6 ionic or covalent
s4o6 ionic or covalent
n2o5 ionic or covalent
p4o6 ionic or covalent molecular
n3o7 ionic or covalent
nh4 2o ionic or covalent
nh4no3 ionic or covalent
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