Give the IUPAC names of the following compound `[Cr(H_2O)_4 Cl_2]Cl`

Explanation

To derive the IUPAC name of the coordination compound `[Cr(H_2O)_4 Cl_2]Cl`, we can follow these steps:

### Step 1: Identify the Coordination Complex
The given compound is `[Cr(H_2O)_4 Cl_2]Cl`. Here, the part inside the brackets `[Cr(H_2O)_4 Cl_2]` represents the coordination complex, while the `Cl` outside the brackets is the counter ion.

### Step 2: Determine the Components of the Coordination Complex
In the coordination complex:
- The central metal ion is chromium (Cr).
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