The above equation describes the reaction process between two chemical substances, nitric acid (HNO3) and copper sulfide (CuS), to produce the products nitrogen dioxide (NO2), water (H2O), copper(II) nitrate (Cu(NO3)2), and sulfur (S).
- Reaction conditions:
The reaction occurs at room temperature and standard pressure. However, the reaction rate can be increased by raising the temperature or pressure.
- Reaction process:
The reaction process takes place in the following steps:
Step 1: HNO3 reacts with CuS to form Cu(NO3)2 and H2S.
Step 2: H2S reacts with HNO3 to form S, NO2, and H2O.
- Phenomena that occur:
When the reaction occurs, there is a phenomenon of brown gas (NO2) being released and the formation of blue crystal substances (Cu(NO3)2), and yellow solid (S).