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Chemistry, 21.06.2019 16:30
How many atoms of oxygen are contained in 160 grams of n2o3
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Chemistry, 22.06.2019 20:30
How many grams of phosphorus are contained in 5.09 moles of phosphorus?
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Chemistry, 23.06.2019 02:00
The bohr model of the atom explained why emission spectra are discrete. it could also be used to explain the photoelectric effect. which is a correct explanation of the photoelectric effect according to the model?
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Chemistry, 23.06.2019 04:31
Which of the following is an example of how telecommunication devices people do their jobs? a.) a security guard checks the time using a digital watch. b.) a banker does some quick math using a solar calculator. c.) a nurse uses a digital thermometer to take a patient’s temperature. d.) a construction worker reports in to his office using a cell phone.
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