October 2021 2 21 Report

Соотнесите:

 

Формула оксида:

1. N2O5
2. FeO

3. Fe2O3

4. N2O3

Формула гидроксида:

А. HNO2

Б. HNO3

В. Fe(OH)2

Г. Fe(OH)3

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