The equation 10HNO3 + 3Cd -> 3Cd(NO3)2 + 5H2O + 10NO

  1. Detailed information about the equation 10HNO3 + 3Cd -> 3Cd(NO3)2 + 5H2O + 10NO:

    • In the above chemical equation, HNO3 is nitric acid, Cd is Cadmium, Cd(NO3)2 is Cadmium nitrate, H2O is water and NO is Nitric oxide.
    • According to the equation, 10 mol of nitric acid reacts with 3 mol of cadmium to produce 3 mol of cadmium nitrate, 5 mol of water and 10 mol of nitric oxide.

  2. Reaction conditions:

    • This reaction may occur at room temperature or when the temperature rises.

  3. Reaction process:

    • The reaction process occurs when nitric acid acts on cadmium, creating cadmium nitrate, water and nitric oxide. Nitric acid acts as a strong oxidizing agent, separating cadmium into Cd2+ ions and nitrate.

  4. Phenomena occur:

    • During the reaction process, the color of the solution changes, from the colorless of nitric acid and the white of cadmium to the colorless of cadmium nitrate and water.
    • Bubbles of nitric oxide gas can be seen escaping from the solution. Nitric oxide is a colorless gas but can create a brown color when in contact with air due to reaction with oxygen to form nitrogen dioxide (NO2).

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