Ba-X1-X2-Ba(NO3)2
1)Ba(OH)2 и BaCl2
2)Ba(OH)2 и BaSO4
3)BaCl2 и BaO
4)BaCl2 и BaSO4
Fe2(SO4)3-X1-X2-Fe(OH)3
1) FeP04 и FeO
2) Fe2S3 и Fe2O3
3) FeBr3 и Fe2O3
4) FeCl3 и Fe(N03)3
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Answers & Comments
Ba-X1-X2-Ba(NO3)2
1)Ba(OH)2 и BaCl2
Fe2(SO4)3-X1-X2-Fe(OH)3
2) Fe2S3 и Fe2O3