Final answer:
A binary acid is an acid that consists of hydrogen and one other nonmetallic element. It is named using the prefix "hydro-" followed by the base name of the nonmetallic element and the suffix "-ic".
Step-by-step explanation:
A binary acid is an acid that consists of hydrogen and one other nonmetallic element. It is named using the prefix "hydro-" followed by the base name of the nonmetallic element and the suffix "-ic". For example, the binary acid HCl is named hydrochloric acid. Binary acids are different from oxoacids, which contain hydrogen, oxygen, and a third element. These naming rules apply to acids in their aqueous form.