The illustration on the left represents a mixture of n2 (blue) molecules and o2 (red) molecules. (illustration shows: n2+02=2no) if these were to react to form no molecules, what is the maximum number of no molecules that could form? hint: atoms must be conserved in an ordinary chemical reaction. no molecules

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.