To determine the name of the compound represented by the formula [tex]\( HI \)[/tex], we start by analyzing its components and applying the rules of nomenclature for acids, particularly binary acids.
1. Identify the components:
- The compound [tex]\( HI \)[/tex] is a binary acid composed of hydrogen (H) and iodine (I).
2. Naming binary acids:
- Binary acids consist of hydrogen and one other element.
- The naming convention for binary acids follows the pattern: “hydro” + base name of the non-metal + “-ic” + “acid”.
- The non-metal in [tex]\( HI \)[/tex] is iodine. When naming binary acids, the non-metal’s root "iodine" changes to “iod”.
3. Combining the parts:
- Using the naming pattern, we get: “hydro” + “iod” + “-ic” = “hydriodic”.
4. Final naming:
- Combining these parts, the complete name of [tex]\( HI \)[/tex] is “hydriodic acid”.
Therefore, the name of the compound [tex]\( HI \)[/tex] is hydriodic acid.
The updated table should now look like this:
[tex]\[
\begin{tabular}{|c|c|}
\hline
$HClO_2$ & chlorous acid \\
\hline
$HI$ & hydriodic acid \\
\hline
$HClO_3$ & chloric acid \\
\hline
\end{tabular}
\][/tex]
