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Chemistry, 19.07.2019 18:00 Terrydactly
Which statement is true about the milky way? it is a big planet. it contains the universe. it has an irregular shape. it has several billion stars.
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Why is the structure of molecule important to its function?
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Chemistry, 22.06.2019 21:40
Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.
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Which statement is true about the milky way? it is a big planet. it contains the universe. it has a...
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