The scheme of transformations is given: FeCl2 → X → FeSO4 → Fe

The scheme of transformations is given: FeCl2 → X → FeSO4 → Fe Write down the molecular equations of reactions, with the help of which it is possible to carry out the indicated transformations. For the first transformation, write an abbreviated ionic reaction equation.

In order to carry out the above chain of reactions, we need to carry out the reactions. To begin with, we need to get any base with an iron content from the chlorine chloride salt, since it is easier to get ferrous sulfate salt from it. The first reaction ferric chloride interacts with sodium hydroxide, tetravalent iron hydroxide is formed, which precipitates, and sodium chloride salt is also formed.

1) FeCl2 + 2 NaOH = Fe (OH) 2 + 2 NaCl

The ionic reaction equation can be written as follows:

Fe  ²⁺ + 2 Cl ^– + 2 Na ⁺ + 2 OH ^– = Fe(OH)₂ + 2 Na ⁺ + 2 Cl ^–

An abbreviated ionic equation can be written as follows:

Fe 2+ + 2 OH – = Fe (OH) 2

The second reaction is the reaction of obtaining a tetravalent salt of iron sulfate from sodium hydroxide, for this we carry out the interaction of sodium hydrogen sulfate with sulfuric acid.

2) Fe (OH) 2 + H2SO4 = FeSO4 + H2O.