Professor Snape, at the Hogwarts School of Witchcraft and Wizardry, can acrosse a new non-metal element in his potion research. He named the new element snapine(Sp). There are no facilities at Hogworts to charcterize this element, Prof. Snape asked Hermonie to take a sample of the element to the muggle world and have it tested. Hermonie came back and informed Prof. Snape that the element has similar chemical and physical properties as the heavier halogen elements. The potion, Prof. Snape is preparing, contains the acid, HSpO2, what is the name of this acid