The equation 8HNO3 + 3Mn -> 3Mn(NO3)2 + 4H2O + 6NO

  1. Detailed information about the equation 8HNO3 + 3Mn -> 3Mn(NO3)2 + 4H2O + 6NO:
    This chemical equation describes the reaction between manganese (Mn) and nitric acid (HNO3) to form manganese nitrate (Mn(NO3)2), water (H2O), and nitric oxide (NO).

  2. Reaction conditions:
    This reaction occurs when manganese comes into contact with concentrated nitric acid at room temperature.

  3. Reaction process:
    Manganese, a metal, will react with nitric acid, a strong acid, to form manganese nitrate, water, and nitric oxide. This reaction is an oxidation-reduction type, where manganese is oxidized from an oxidation state of 0 to +2 and nitrogen in HNO3 is reduced from +5 to +2.

  4. Observed phenomena:
    When manganese reacts with nitric acid, you will see a bubbling and reddish-brown smoke due to the formation of nitric oxide. The surrounding environment of the reaction will heat up because this is an exothermic reaction. Simultaneously, the initial solution will turn light pink due to the formation of manganese nitrate.

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