The equation 6HNO3 + 2Fe -> 4NO2 + 2H2O + 2Fe(NO3)3

  1. Detailed information about the equation 6HNO3 + 2Fe -> 4NO2 + 2H2O + 2Fe(NO3)3:
    This equation describes the chemical reaction between nitric acid (HNO3) and iron (Fe). In this reaction, nitric acid reacts with iron to produce nitrogen dioxide (NO2), water (H2O), and iron (III) nitrate (Fe(NO3)3).

  2. Reaction conditions:
    This reaction usually occurs easily at room temperature. However, if you want to accelerate the reaction, you can heat the solution.

  3. Reaction process:
    When iron is added to a solution of nitric acid, the iron is oxidized by the nitrate ions in the solution, producing iron (III) nitrate and releasing nitrogen dioxide and water.

  4. Observations:
    During the reaction process, we will see the phenomenon of iron gradually melting in the nitric acid solution, along with brown gas (due to nitrogen dioxide) escaping. Finally, the nitric acid solution will change from its original colorless color to a deep yellow (due to iron (III) nitrate).

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