Question

What is the formula for hydrocyanic acid?

Give your answer in the form A#B#, where the number is the subscript (don't include a 1 subscript explicitly).
For example, the formula MgCl₂ would be entered as MgCl₂."

Answer 1

The formula for hydrocyanic acid is HCN. In the nomenclature for naming acids, the prefix hydro- is added to the name of the anion, and the ending -ide is replaced with -ic acid.

Step-by-step explanation:

The formula for hydrocyanic acid is HCN.

In the nomenclature for naming acids, the prefix hydro- is added to the name of the anion, and the ending -ide is replaced with -ic acid. Hence, the base name for the nonmetal cyanide, CN-, becomes cyan- and when hydro- is added, it becomes hydrocyanic acid.