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nh2cl polar or nonpolar
nh2- polar or nonpolar
is nh2 polar or nonpolar
nh2 2co polar or nonpolar
nh4cl polar or nonpolar
n2h2 polar or nonpolar
nh2conh2 polar or nonpolar
co nh2 2 polar or nonpolar
nh2ch3 polar or nonpolar
is nh2cooh polar or nonpolar
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