Chemistry, 28.06.2019 16:30 sassy11111515
Given: 4al + 3o2 → 2al2o3 in this chemical reaction, how many grams of al2o3 will be produced if 375 grams of al react completely? express your answer to three significant figures. there will be grams of al2o3.
Answers: 1
Chemistry, 22.06.2019 14:00
How is the atomic number of a nucleus changed by alpha decay
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Chemistry, 22.06.2019 15:20
Select the most likely product for this reaction: koh(aq) + co2(g) – ? k2co3(aq) + h2o(1) k(s) + h2(g) + o2(g) k(s) + co3(9) +h2
Answers: 2
Chemistry, 22.06.2019 21:40
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
Given: 4al + 3o2 → 2al2o3 in this chemical reaction, how many grams of al2o3 will be produced if 37...
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