Acertain liquid has a density of 2.0 g/cm3 . 40.0 g of this liquid would occupy a volume of cm3

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

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.

How many moles of potassium are needed to react completely with 12.8 moles of magnessium bromide?