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

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

    • The above chemical equation describes the reaction process between the metal zinc (Zn) and concentrated nitric acid (HNO3) to produce Zn(NO3)2, NO2 and H2O.

  2. Reaction conditions:

    • For the reaction to occur, the nitric acid must be concentrated, with a high concentration. The reaction belongs to the set of redox reactions and occurs when there is contact between the reactants.

  3. Reaction process:

    • When Zn comes into contact with concentrated HNO3, it will be oxidized to Zn(NO3)2, during this process, HNO3 is simultaneously reduced to NO2 (when the reaction occurs at low temperature) or N2O4 (when the reaction occurs at high temperature).

  4. Occurrences:

    • During the reaction process, the solid zinc will gradually disappear and the characteristic brown NO2 gas will be generated. At the same time, the solution will also display solid particles of Zn(NO3)2.

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