1) As(3)H3(1) , Cu(2)O(2), N2(+3)O3(2), Ca(2) Br2(1), Al(3)I3(1), S( 6)F6(1) ,
K2(1)S(2), Si(4)O2(2), Mg3(2)N2(3)
2) H2Se, PCl3, PbO2, Fe2S3
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Answers & Comments
1) As(3)H3(1) , Cu(2)O(2), N2(+3)O3(2), Ca(2) Br2(1), Al(3)I3(1), S( 6)F6(1) ,
K2(1)S(2), Si(4)O2(2), Mg3(2)N2(3)
2) H2Se, PCl3, PbO2, Fe2S3