Make an equation: Iron → iron (II) chloride → iron (II) hydroxide → iron (II) sulfate → iron (II) nitrate

To carry out the above chain of transformations, it is necessary to carry out the following reactions:

The reaction takes place between substances such as iron and hydrochloric acid. As a result of the reaction, ferric chloride is formed and hydrogen is released. The molecular equation of the reaction can be written as follows:

Fe + 2 HCl = FeCl2 + H2,
The reaction takes place between ferric chloride and sodium hydroxide. As a result of the reaction, iron hydroxide and sodium chloride are formed. The molecular equation of the reaction can be written as follows:

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

The reaction takes place between substances such as iron hydroxide and sulfuric acid. As a result of the reaction, a substance is formed: a salt of ferrous sulfate and water is released. The molecular equation of the reaction can be written as follows:

Fe (OH) 2 + Н2SO4 = FeSO4 + 2 H2O
The reaction takes place between substances such as ferrous sulfate and nitric acid. As a result of the reaction, substances are formed: iron nitrate salt and sulfuric acid. The molecular equation of the reaction can be written as follows:

2 FeSO4 + 2 HNO3 = Fe (NO3) 2 + 2 H2SO4.



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