Question

MnSO4-Mn-MnO2-Mn2O7-KMnO4

Answer 1

1) MnSO4 + Mg = MgSO4 + Mn

2) Mn+O2 = MnO2

3) 4MnO2 + 3O2= 2Mn2O7

4) Mn2O7 + 2KOH = 2KMnO4 + H2O

Answer 2

It looks like you've listed a series of compounds and oxidation states related to manganese (Mn). This sequence represents different oxidation states of manganese and some of its compounds. Here's a breakdown of each component:

1. MnSO4: Manganese(II) sulfate. In this compound, manganese is in the +2 oxidation state.

2. Mn: Elemental manganese. This typically refers to manganese in its zero oxidation state (elemental form).

3. MnO2: Manganese(IV) dioxide. Manganese is in the +4 oxidation state here.

4. Mn2O7: Manganese(VII) oxide. In this compound, manganese is in the +7 oxidation state.

5. KMnO4: Potassium permanganate. Manganese is in the +7 oxidation state in this compound as well.

The sequence represents a range of oxidation states that manganese can exhibit, spanning from -1 (as found in some complex organometallic compounds) to +7. Manganese is known for its ability to exhibit a variety of oxidation states, which makes it a versatile element in various chemical reactions and applications.