Final answer:
Binary acids are named by adding 'hydro-' to the base name of the non-metal, changing '-ide' to '-ic', and appending 'acid'. For example, aqueous HCl is called hydrochloric acid.
Step-by-step explanation:
Binary acids are named using specific nomenclature rules in chemistry. When a binary acid consists of hydrogen and one other element, particularly a halogen, it is named by adding the prefix 'hydro-' to the base name of the non-metal element, changing the ending from -ide to '-ic', and then appending 'acid'. An example is HCl, which when dissolved in water to form an aqueous solution is called hydrochloric acid. HCl gas on its own is called hydrogen chloride, but it becomes hydrochloric acid once in solution.
To illustrate further, HCN in aqueous form is named hydrocyanic acid, and HI is hydroiodic acid. These names are used when these compounds act as acids, especially in aqueous solution. This distinct naming convention highlights their ability to release hydrogen ions, H+ when dissolved in water.