Chemistry, 22.08.2019 06:00 calebcoolbeans6691
The atomic number of barium is 56 what do you know about the subatomic particles in an atom of this element
Answers: 2
Chemistry, 21.06.2019 15:00
If a reaction has g of -136kj at 110°c, will it be spontaneous at this temperature (110°c)? yes or no
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Chemistry, 22.06.2019 08:00
Match the mixture with the substance// i really need on this guys (it’s a pic btw)
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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
The atomic number of barium is 56 what do you know about the subatomic particles in an atom of this...
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