а) Na3N, Al2s3, PH2 , MgCl2 , SO2, N2O3
б) Na3Po4, ZnSo4 ,Ca(No3)2, K2SiO3, Cu(OH)2
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а) Na3N, Al2s3, PH2 , MgCl2 , SO2, N2O3
б) Na3Po4, ZnSo4 ,Ca(No3)2, K2SiO3, Cu(OH)2