Write the chemical name of the following compounds
`Na_4Fe(CN)_6`

Explanation

To write the chemical name of the compound \( \text{Na}_4\text{Fe(CN)}_6 \), we can follow these steps:

### Step 1: Identify the components of the compound
The compound consists of sodium ions (\( \text{Na}^+ \)) and a complex ion (\( \text{Fe(CN)}_6^{4-} \)).

### Step 2: Break down the complex ion
The complex ion \( \text{Fe(CN)}_6^{4-} \) contains iron (Fe) and cyanide (CN) ions. Each cyanide ion has a charge of -1, and there are 6 cyanide ions.

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