The starship enterprise uses the compound, B5H9 and oxygen gas as fuel. This is the balanced equation: 2B5H9 + 12O2 = 5B2O3 + 9H2O If one fuel tank holds 126 g of B5H9 and the other holds 192 g of Oxygen how much B2O3 will be produced? What is the limiting reagent? How much of the excess fuel will be left over? If 171.3 g of B2)3 is actually produced, what is the percent yield?

The table lists pressure and volume values for a particular gas. which is the best estimate for the value of v at p = 7.0 × 103 pascals?

What are the two largest greenhouse gases

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.