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nh4 3po4 ionic or covalent
is nh4 3po4 ionic or molecular
nh4 covalent or ionic
nh4 2o ionic or covalent
nh4 2co3 covalent or ionic
nh4 2so4 ionic or covalent
nh4no3 covalent or ionic
nh4 2s covalent or ionic
nh4oh ionic or covalent
nh4hco3 ionic or covalent
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