Give the IUPAC names of the following compound `Hg[Co(SCN)_4]`

Explanation

To determine the IUPAC name of the compound `Hg[Co(SCN)₄]`, we can follow these steps:

### Step 1: Identify the components of the compound
The compound consists of mercury (Hg) and a coordination complex `[Co(SCN)₄]`. The coordination complex contains cobalt (Co) and four thiocyanate ligands (SCN).

### Step 2: Determine the oxidation state of cobalt
Let the oxidation state of cobalt be \( x \). Each thiocyanate ligand (SCN) has a charge of -1. Since there are four thiocyanate ligands, their total contribution to the charge is -4. The overall charge of the coordination complex is -1. Therefore, we can set up the equation:

...