Ответ:
№1
CaCl2,Mg3N2,Al2S3,FeCl3,SiCl4
№2
N(I); P(V); N(III); Ca(II); C(IV); S(VI); N(II)
№3
Na2S, CaS,Al2S3
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Ответ:
№1
CaCl2,Mg3N2,Al2S3,FeCl3,SiCl4
№2
N(I); P(V); N(III); Ca(II); C(IV); S(VI); N(II)
№3
Na2S, CaS,Al2S3