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The melting point of sulfur is 115 °c and its boiling point is 445 °c. what state would sulfur be in at 200 °c?
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If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted
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Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a d— в-а — с d-b-c-a
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Copper oxide, CuO, is a black solid. It doesn’t look at all likethe element copper. What color flame...
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