Chemistry, 26.11.2019 02:31 bullockarwen
Place the following in order of increasing f-a-f bond angle, where a represents the central atom in each molecule. a. pf3 < of2 < pf4 b. of2 < pf3 < pf4 c. of2 < pf4 < pf3 d. pf4 < of2 < pf3 e. pf4 < pf3 < of2 question # 7 place the following in order of increasing x-se-x bond angle
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Chemistry, 21.06.2019 17:00
In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound microscope does not? a. simultaneous observation b. polarization c. fluorescence d. higher magnification
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Chemistry, 22.06.2019 04:30
Turbo the snail moves across the ground at a pace of 12 feet per day. if the garden is 48 feet away, how many days will it take for the snail to get there?
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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.
Answers: 2
Place the following in order of increasing f-a-f bond angle, where a represents the central atom in...
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