Chemistry, 12.10.2020 20:01 danielmartinez91
A car is traveling 35 miles/hr for 17 miles. How much time has the car been on the road?
a
595 hours
b
2.1 hours
c
1.5 hours
d
0.49 hours
Answers: 1
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In which phase(s) do the molecules take the shape of the container?
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What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?
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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
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Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o β h bond is nonpolar and the molecule is asymmetric. the o β h bond is nonpolar and the molecule is symmetric. the o β h bond is polar and the molecule is asymmetric. the o β h bond is polar and the molecule is symmetric.
Answers: 1
A car is traveling 35 miles/hr for 17 miles. How much time has the car been on the road?
a
595...
595...
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