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Which method of testing substances is a sure way to identify a chemical reaction?
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Which type of microscope would allow the viewer to see ribosomes inside a cell?
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Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack
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The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
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Which method of testing substances is a sure way to identify a chemical reaction?...
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