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During which step in the scientific method should the independent varaiable be established?
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Asample of the male sex hormone testosterone, c19h28o2, contains 3.88ร10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?
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The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?
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An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8
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During which step in the scientific method should the independent varaiable be established?...
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