Chemistry, 21.07.2019 21:20 HighSchool97654
Explain how calcium, ca2+, and phosphate, po43−, can make a compound with electroneutrality
Answers: 1
Chemistry, 22.06.2019 08:30
The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.
Answers: 1
Chemistry, 22.06.2019 18:00
How does climate change cause the ocean's thermohaline current to slow down?
Answers: 3
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
Chemistry, 23.06.2019 01:30
Which is an example of a highly unstable isotope that is often used in fission reactions?
Answers: 1
Explain how calcium, ca2+, and phosphate, po43−, can make a compound with electroneutrality...
Biology, 30.07.2019 20:00
History, 30.07.2019 20:00
Health, 30.07.2019 20:00
Geography, 30.07.2019 20:00
Mathematics, 30.07.2019 20:00
Chemistry, 30.07.2019 20:00