Chemically clean an iron nail from rust, assuming that the composition of the rust includes iron (III)

Chemically clean an iron nail from rust, assuming that the composition of the rust includes iron (III) oxide and iron (III) hydroxide.

First, you need to calcine the nail so that the iron (III) hydroxide turns into iron (III) oxide:
Fe (OH) 3 = Fe2O3 + H2O
Now we have only iron (III) oxide; iron is industrially reduced from it in two ways:
1) Passing hot hydrogen through it:
Fe2O3 + 3H2 = 2Fe + 3H2O
2) Passing carbon monoxide through it:
Fe2O3 + 3CO = 2Fe + 33CO2 ↑



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.