Question

Гидроксид железа Fe(OH)2 качественная реакция

Answer 1

2Fe(OH)2+H2O2=2Fe(OH)3
Осадок станет бурым

Answer 2

Hydroxide of Iron (Fe(OH)2) - Qualitative Reaction

The hydroxide of iron, Fe(OH)2, can undergo various qualitative reactions. Here are some examples:

1. Reaction with acids: - Fe(OH)2 reacts with nitric acid (HNO3) to form iron(III) nitrate (Fe(NO3)3) and water (H2O) [[2]](https://chemege.ru/iron/). - Fe(OH)2 reacts with hydrochloric acid (HCl) to form iron(III) chloride (FeCl3) and water (H2O). - Fe(OH)2 reacts with sulfuric acid (H2SO4) to form iron(III) sulfate (Fe2(SO4)3) and water (H2O) [[2]](https://chemege.ru/iron/). - Fe(OH)2 reacts with hydrobromic acid (HBr) to form iron(III) bromide (FeBr3) and water (H2O).

2. Reaction with potassium hydroxide (KOH): - Fe(OH)2 reacts with potassium hydroxide (KOH) to form potassium ferrite (KFeO2) and water (H2O).

3. Reaction with oxygen: - Fe(OH)2 can be oxidized by oxygen (O2) and water (H2O) to form iron(III) hydroxide (Fe(OH)3) [[2]](https://chemege.ru/iron/). - The reaction can be represented as: 4Fe(OH)2 + O2 + 2H2O → 4Fe(OH)3 [[2]](https://chemege.ru/iron/).

These are just a few examples of the qualitative reactions that can occur with Fe(OH)2. The specific reaction may depend on the conditions and reactants involved.

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