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]: The Schlenk equilibrium, which can be affected by the presence of dioxane, describes the stability of these compounds, whose synthesis can be improved by the addition of mercuric chloride amalgamates. They react with nitriles to form intermediate imine anions, and dry carbon dioxide can be bubbled through them to create carboxylic acids, which themselves do not form an addition product with these. In what is sometimes called their namesake's reaction, they act as strong nucleophiles to form tertiary or secondary alcohols from ketones or aldehydes. For 10 points, name these compounds formed by reacting an alkyl halide with magnesium, named for a French guy.
[A]: Science

[Q]: This quantity for an atomic nucleus is determined using Weizscker's [VAHYTS-zek-uhrs] formula. The no hair theorem states black holes are completely characterized by their angular momentum, charge, and this quantity. The oscillation period of a spring equals two pi times the square root of this quantity over the spring constant. The theoretical value of this quantity for gluons is zero. Linear momentum equals this quantity times velocity. For 10 points, name this quantity measured in kilograms.
[A]: Science

[Q]: This author wrote about Violet and Peony Lindsey making a snowman who comes to life as a little girl, while in another story a man painted half red and half black tells Robin to wait at the steps of a church for one hour to see the title character. This author of "The Snow Image" wrote about Bartram discovering the title character has burnt himself in his lime kiln looking for the "unpardonable sin" in "Ethan Brand." This author wrote a story about Aminadab helping Aylmer remove the titular defect from his wife Georgiana, while Reverend Hooper refuses to remove a depressing garment in "The Minister's Black Veil." For 10 points, name this author who wrote "Young Goodman Brown" and The Scarlet Letter.
[A]:
Literature