Instruct: Classify the following sentence into a predefined topic category:
Calculate the volume of Ba(OH)2 which would be required to react with 25 cm3 of 12g of CH3COOH?
Assign it to one of the following topics:[Society & Culture, Science & Mathematics, Health, Education & Reference, Computers & Internet, Sports, Business & Finance, Entertainment & Music, Family & Relationships, Politics & Government]
Output: