Question

hydrocyanic acid
express your answer as a chemical formula.
a chemical reaction does not occur for this question.

Explanation:

Step1: Recall the formula of hydrocyanic acid

Hydrocyanic acid is also known as prussic acid. Its chemical formula is formed by a hydrogen ion (\(H^+\)) and a cyanide ion (\(CN^-\)). Combining them, we get the formula \(HCN\).

Answer:

\(HCN\)