Methane (CH 4 ) , ammonia (NH 3 ) , and oxygen () can reaci to form hydrogen cyanide (HCN) and water (H 2 O) according to this equation 2CH 4 +2NH 3 +3O 2 2HCN+6H 2 O How many grams of methane are required to produce 2 moles ? Use your periodic table to help you. Please show work

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.

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added

What must be in balance for temperatures to remain constant?