When enthalpy in a system decreases, the reaction is considered to be
a. neutral
b. e...
Chemistry, 26.08.2019 02:20 Suheily218
When enthalpy in a system decreases, the reaction is considered to be
a. neutral
b. exothermic
c. endothermic?
Answers: 1
Chemistry, 21.06.2019 22:30, mauifrifer3986
Omg imgonnafailnfiedkla use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.
Answers: 1
Chemistry, 22.06.2019 12:30, masteroftheuniverse3
When a scientific theory has been tested and proved by the scientific community, it becomes a law
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
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