Chemistry, 17.01.2021 05:50 jayjay7773
John Dalton determined that the concept of atoms could be used to describe matter.
Which of the following is FALSE regarding John Dalton's four points about atomic theory.
A. Atoms are very small indivisible, indestructible particles.
B. Chemical compounds form when two or more kinds of atoms combine.
C. All matter is made up of atoms.
D. All molecules are identical in mass and other properties.
Answers: 2
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Chemistry, 22.06.2019 13:30
Which is true of a liquid? it has a definite volume but not a definite mass.it has a definite mass but not a definite volume.it has a definite volume but not a definite shape.it has a definite shape but not a definite volume.
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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
John Dalton determined that the concept of atoms could be used to describe matter.
Which of the fol...
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