Justify that the following reactions are redox reactions :
`2K(s)+F_(2)(g)to2K^(+)F^(-)(s)`

Explanation

To justify that the reaction \( 2K(s) + F_2(g) \to 2K^+(s) + 2F^-(s) \) is a redox reaction, we will analyze the changes in oxidation states of the elements involved in the reaction.

### Step-by-Step Solution:

1. **Identify the Reactants and Products**:
The reactants are potassium (K) in solid form and fluorine (F) in gaseous form. The products are potassium ions (\( K^+ \)) and fluoride ions (\( F^- \)).

2. **Determine the Oxidation States**:
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