Chemistry, 29.09.2019 18:00 DeathFightervx
True or false a change in temperature is always an indicator of a chemical reaction.
Answers: 2
Chemistry, 22.06.2019 21:40, k3rbycalilung
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 09:00, alyssa0888
Water is a highly important natural resource. which of these would be the best method to conserve water? a) drinking bottled water b) monitoring the ph of rivers c) treating and re-using wastewater d) testing nitrate levels in groundwater
Answers: 1
True or false a change in temperature is always an indicator of a chemical reaction....
Spanish, 27.05.2021 16:00
Geography, 27.05.2021 16:00
English, 27.05.2021 16:00
Spanish, 27.05.2021 16:00
Spanish, 27.05.2021 16:00
Mathematics, 27.05.2021 16:00