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Q19: Liquid nitrogen boils at 77 K. What
Q22: Determine whether the given information is
Q52: Enriched weapons-grade uranium consists of 80% uranium-235
Q57: The bubbles that form in water after
Q66: A standard adult dose of a cough
Q88: A copper ore consisting of 12.5% copper(II)
Q97: Spanish mahogany has a density of 53
Q141: A fair die is rolled. Let
Q151: Four coins are tossed. What is
Q175: The phrase "Dogs of the Dow"