11.В схеме превращений Mg ЯВЛЯЮТСЯ a) MgCl₂, MgO, Mg(OH)2 b) Mg(OH)2, MgCl2, Mg(NO2)2 c) MgCl2, MgO, Mg(NO2)2 d) MgCl2, Mg(OH)2, Mg(NO3)2 -ISCI X -KOIT Y -INV, Z веществами X, Y, Z
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