The equation 4HNO3 + C -> 2H2O + 4NO2 + CO2

Detailed information on the equation 4HNO₃ + C -> 2H₂O + 4NO₂ + CO₂:

• The above chemical equation shows that nitric acid (HNO₃) reacts with graphite (C) to form water (H₂O), nitrogen dioxide (NO₂) and carbon dioxide (CO₂).

Reaction conditions:

• The reaction takes place under high temperature conditions.

Reaction process:

• At high temperatures, nitric acid will react with graphite, leading to the formation of water, nitrogen dioxide and carbon dioxide.

Phenomenon observed:

• When the reaction happens, you can see the release of gases, which indicates the formation of gaseous products (NO₂ and CO₂).