Iron reacts with dilute nitric acid to form iron (III) nitrate, nitric oxide (II), and water.

| September 12, 2021 | education

Iron reacts with dilute nitric acid to form iron (III) nitrate, nitric oxide (II), and water. Write the equation for this reaction and make an electronic balance.

A chemical reaction takes place between substances such as iron and nitric acid. As a result of the reaction, substances are formed: trivalent iron nitrate salt, bivalent nitric oxide and water. The molecular equation of the reaction can be written as follows:

Fe + 4 HNO3 = Fe (NO3) 3 + NO + 2 H2O

In order to equalize this chemical reaction, we need to put the number 4 in front of the nitric acid, and in the reaction products, put the number 2 in front of the water.
We compose the equation of electronic balance:

N 5+ + 3 e = N 2+ oxidizing agent, hence the reduction process

Fe 0 – 3 e = Fe 3+ reducing agent, hence the oxidation process.



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