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what is the second most abundant element in stars?
a.
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Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?
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Particles vibrate in a rigid structure and do not move relative to their neighbors.
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Which of the following describes a situation where competition between producers exists
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Select all the correct answers. which compounds have the empirical formula ch20? (multiple answers)a. c2h4o2b. c3h603c. ch2o2d. c5h1005e. c6h1206
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