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Chemistry, 21.06.2019 22:00
Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron
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Chemistry, 21.06.2019 23:10
Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.
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Chemistry, 22.06.2019 06:30
Particle model to predict what will happen if a sharp object creates a hole in the soccer ball
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Chemistry, 22.06.2019 08:30
Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?
Answers: 1
Hòa tan hoàn toàn 2,8g sắt bằng HCl vừa đủ . a> tính thể tích khí thu đc ở đktc . b> tính thể...
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