Fill in the blank
an elements is its row in the periodic table...
Chemistry, 19.08.2019 13:30, ahrensy8444
Fill in the blank
an elements is its row in the periodic table
Answers: 2
Chemistry, 22.06.2019 21:40, k3rbycalilung
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
Chemistry, 22.06.2019 23:00, DESI111609
What is the average rate of the reaction between 10 and 20 s?
Answers: 1
Chemistry, 23.06.2019 02:30, roseemariehunter12
Asubstance is held in an open container. its particles move past one another at random speeds but do not leave the container. heat is removed from the system, and the particles slow down. when enough heat is removed, the particles no longer have enough speed to overcome the weak attractive forces between them. when this happens, the substance enters its solid state. the process described above is known as .
Answers: 3
Mathematics, 18.08.2021 05:10
Biology, 18.08.2021 05:10
Mathematics, 18.08.2021 05:10
Mathematics, 18.08.2021 05:10
Mathematics, 18.08.2021 05:10
Biology, 18.08.2021 05:20