Осуществите цепочку превращений: а)AI AI2O3 AI(OH) AI2(SO4)3 AICI3 б)H2 HBr NaBr CaBr2 Ca(OH)2 в)Mg MgO MgSO4 Mg(OH)2 NaCI г)P P2O5 H3PO4 NaPO4 Ca3(PO4)3
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