Предмет: Химия, автор: dianastrila992

Що означають такі записи?
10Аg
4H²O

Ответы

Автор ответа: Sklavik
1

Это коэффицент.

К примеру:

10 серебра (Ag)

4 (H2O)

\

\

а "2" между водородом и кислородом уже будет называться "индексом"

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