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Detailed information about the equation Cu + 2HNO3 -> Cu(NO3)2 + 2H2O + 2NO2
The above chemical equation describes the reaction process between copper (Cu) and nitric acid (HNO3) to form copper (II) nitrate (Cu(NO3)2), water (H2O), and nitrogen dioxide (NO2). -
Reaction conditions
The reaction occurs when concentrated nitric acid reacts with copper, happening at room temperature and atmospheric pressure. -
Reaction process
The reaction process takes place in the following steps:
- Copper reacts with nitric acid to form copper (II) nitrate and water.
- At the same time, nitric acid is reduced to nitrogen dioxide.
- Occurring phenomena
When the reaction takes place, we can observe several phenomena:
- The color change of the solution from light blue (color of copper) to deep blue (color of copper (II) nitrate).
- The escape of reddish-brown nitrogen dioxide gas.
- The release of heat when the reaction occurs.