Предмет: Химия, автор: jkigsdfads

Определите валентности химических элементов в веществах,
формулы которых: Cu2O, PbO2, CrO, OsO4, FeCl3, CuF2, CuO, N2O,
CrO3, SrO, ZnCl2, OF2

фтвфкещт20: всё готово

Ответы

Автор ответа: фтвфкещт20
0

Ответ:

Cu2O Cu(I) O(II)

PbO2 Pb(IV) O(II)

CrO Cr(II) O(II)

OsO4 Os(VIII) O(II)

FeCl3 Fe(III) Cl(I)

CuF2 Cu(II) F(I)

CuO Cu(II) O(II)

N2O N(I) O(II)

CrO3 Cr(VI) O(II)

SrO Sr(II) O(II)

ZnCl2 Zn(II) Cl(I)

OF2 O(II) F(I)

Объяснение : У Кислорода(O) и у водорода(H) всегда постоянная валентность (II - у кислорода и соответственно I у водорода)

Автор ответа: iluhamakeevka111
0

Ответ:

Cu2O- Cu(I)O(II)

PbO2-Pb(IV) O2(II)

CrO-(II)

OsO4- Os(VIII) O4(II)

FeCI3- (III)

CuF2- Cu(II) F2(I)

CuO- Cu(II) O(II)

N2O- (II)

CrO3- (VI)

SrO - Sr(II) O(I)

ZnCI2- Zn (II) Cl(I)

OF2 O(II) F(I)

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