An aqueous solution of this compound is the simplest reagent used to hydrate alkenes, albeit with carbo·cation rearrangements. Nitric acid must be protonated by this compound (20[1])before (0[1])it nitrates benzene. (20[1])The 18-molar, (20[2])36-normal (20[1])pure anhydrous form of this compound has a (20[1])Hammett function (20[1]0[1])of −12 (“minus twelve”). This compound is made industrially by oxidizing a dioxide (0[1])to a trioxide using (0[1])vanadium, (20[2]0[1])then (20[1])dissolving (20[1]0[1])it in water to make it (20[1]0[1])(*) “wet.” This compound (10[1])violently dehydrates sugars to pure carbon. (0[1])The first rechargeable batteries (0[1])used this compound (0[1])as the electrolyte between two lead plates. (10[1])This highest-volume industrial chemical (0[1])is synthesized (10[1])using the contact process. (10[4])For 10 points, name this strong di·protic acid (10[1])which has formula (0[1])H2SO4. (10[4])■END■ (10[11])