Detailed Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Q: This substance reacts with sodium chloride in the Mannheim process. This substance is created industrially through a process that employs vanadium (vuh-NAY-dee-um) oxide as a catalyst, the contact process. A certain trioxide combined with this compound is called oleum (OH-lee-um), and this compound's two hydrogen atoms per ionizable molecule makes it diprotic. For 10 points, name this strong acid found in car batteries with formula H-two S-O four.
A:
Science