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polinaokuneva0oumyci
polinaokuneva0oumyci
15.04.2022 16:57 •  Химия

Степень окисления в соединениях азота

👇
Ответ:
Ekaeterina44
Ekaeterina44
15.04.2022
..........7?(95566vgghfdggcdgh
Степень окисления в соединениях азота
4,7(4 оценок)
Открыть все ответы
Ответ:
s1mple72
s1mple72
15.04.2022

Дур*

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Must Waste More Time...

4,6(87 оценок)
Ответ:
бэйба123
бэйба123
15.04.2022

CIVII20II7

Объяснение:

определим валентность хлора в его соединении с кислородом — Cl2O7.

 

1. Записываем известную валентность кислорода над формулой. Неизвестную валентность обозначаем буквой x:

 

Clx2OII7.

 

2. Находим сумму единиц валентности каждого элемента. Для этого его валентность умножаем на число атомов:

 

x⋅2=2⋅7.

 

3. Вычисляем x:

 

2x=14,x=14:2=7.

 

Валентность хлора равна VII:

 

ClVII2OII7.

Составление формулы бинарного соединения по валентностям химических элементов

Если известны валентности двух элементов, то можно составить формулу их соединения.

4,6(78 оценок)
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