1-69

Question

1-69

Укажите валентности элементов в соединениях:
а) CF₄, V₂O₅, ZnCl₂, CuO, Cu₂O, Mg₃P₂;
б) CaBr₂, SO₂, As₂O₅, Al₂S₃, Ba₃P₂, FeO;
в) NO, N₂O₃, SO₃, Na₂S, SF₆, BBr₃;
г) Na₃N, P₂O₅, BaCl₂, Mg₃P₂, PbO₂, PbO.

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Ответ

gomolog.ru · Answer 1 · 2019-06-05

а) `overset(IV)(C)overset(" "I)(F)_4`, `overset(V)(V)_2overset(" "II)(O)_5`, `overset(II)(Zn)overset(" "I)(Cl)_2`, `overset(II)(Cu)overset(" "II)(O)`, `overset(I)(Cu)_2overset(" "II)(O)`, `overset(II)(Mg)_3overset(" "III)(P)_2`;

б) `overset(II)(Ca)overset(" "I)(Br)_2`, `overset(IV)(S)overset(" "II)(O)_2`, `overset(V)(As)_2overset(" "II)(O)_5`, `overset(III)(Al)_2overset(" "II)(S)_3`, `overset(II)(Ba)_3overset(" "III)(P)_2`, `overset(II)(Fe)overset(" "II)(O)`;

в) `overset(II)(N)overset(" "II)(O)`, `overset(III)(N)_2overset(" "II)(O)_3`, `overset(VI)(S)overset(" "II)(O)_3`, `overset(I)(Na)_2overset(" "II)(S)`, `overset(VI)(S)overset(" "I)(F)_6`, `overset(III)(B)overset(" "I)(Br)_3`;

г) `overset(I)(Na)_3overset(" "III)(N)`, `overset(V)(P)_2overset(" "II)(O)_5`, `overset(II)(Ba)overset(" "I)(Cl)_2`, `overset(II)(Mg)_3overset(" "III)(P)_2`, `overset(IV)(Pb)overset(" "II)(O)_2`, `overset(II)(Pb)overset(" "II)(O)`.