May 2023 1 8 Report
Дана цепочка превращений: Fe → (1) → Fe(OH)3 → (2) → Fe → (3) → Fe(OH)2 → (4) Укажите формулы пропущенных в цепочке веществ: а) Fe2O3 б) FeCl3 в) FeO г) FeSO4 ​
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