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What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable
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An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o
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A chemical reaction can theoretically produce 137.5 grams of product, but it actually produced 112.9...
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