What is Mn? Important knowledge about Mn.

  1. Definition of Mn
    Manganese (Mn), also known as Mangan in Vietnamese, is a chemical element with the symbol Mn and atomic number 25. It is a transition metal with a silvery-white color, hard and very flexible. Manganese has a molar mass of 54.938045 u and is arranged in group 7, period 4 in the periodic table. Manganese has oxidation states of +2, +3, +4, +5, +6, +7, this atom can form many types of ions with different oxidation numbers.

  2. Properties of Mn
    2.1 Physical properties of Mn: Manganese is solid at room temperature, has a silvery-white color, odorless and does not have the ability to change the pH of water.
    2.2 Chemical properties of Mn: Manganese mainly reacts with oxygen, chlorine, and acids.

  3. Commonly encountered chemical equations of Mn
    Mn + O2 -> MnO2, Mn + HCl -> MnCl2 + H2, Mn + S -> MnS, 2Mn + 7O2 -> 2Mn2O7, Mn + CuSO4 -> MnSO4 + Cu.

  4. Preparation of Mn
    4.1 Laboratory preparation of Mn: Manganese is typically prepared from pyrolusite ore (MnO2).
    4.2 Industrial preparation of Mn: On an industrial scale, manganese is usually prepared by reducing MnO2 with carbon in a container.

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