Complete the equations :
`(b) 3K_(2) MnO_(4) underset(" ") overset( "water ")(to)`

Explanation

To complete the equation for the reaction of potassium manganate (K₂MnO₄) with water, we need to follow these steps:

### Step 1: Determine the Oxidation State of Manganese in K₂MnO₄
The oxidation state of manganese (Mn) in K₂MnO₄ can be calculated as follows:
- Potassium (K) has an oxidation state of +1, and there are 2 potassium atoms: \(2 \times +1 = +2\)
- Oxygen (O) has an oxidation state of -2, and there are 4 oxygen atoms: \(4 \times -2 = -8\)
- Let the oxidation state of Mn be \(x\).

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