The chemical equation 2HNO3 + Sn -> 2NO2 + 2H2O + Sn(NO3)2

  1. Detailed information about the equation 2HNO3 + Sn -> 2NO2 + 2H2O + Sn(NO3)2:

    The above chemical equation describes the reaction process between nitric acid (HNO3) and the metal tin (Sn). The products of the reaction are nitrogen dioxide (NO2), water (H2O), and tin nitrate (Sn(NO3)2).

  2. Reaction conditions:

    The reaction occurs at room temperature and standard pressure.

  3. Reaction process:

    When nitric acid reacts with tin, nitric acid is reduced to nitrogen dioxide. In this process, tin is oxidized to tin (II) ions, forming tin nitrate. Summarizing, we have the following equation:

    2HNO3 + Sn -> 2NO2 + 2H2O + Sn(NO3)2

  4. Observed phenomena:

    When the reaction occurs, we can observe a change in color. The colorless nitric acid when reacting will produce red-orange nitrogen dioxide. At the same time, tin will gradually dissolve in the acid solution.

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