The chemical formula of hydrobromic acid is HBr.
Hydrobromic acid is a binary acid, which means it consists of hydrogen and one other element, in this case, bromine. The formula for binary acids follows the pattern "hydro-" + root of the anion + "-ic acid."
In the case of hydrobromic acid, the root of the anion (bromine) is "brom," so when combined with hydrogen, it becomes "hydrobromic acid," with the chemical formula HBr.
So, to answer the question: the chemical formula of hydrobromic acid is HBr.
