In figure 15-1, cool air is more dense and forces up air.
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Answers: 3
Chemistry, 21.06.2019 23:40
If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?
Answers: 2
Chemistry, 22.06.2019 12:00
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
Chemistry, 22.06.2019 12:20
Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.
Answers: 3
Chemistry, 22.06.2019 13:00
Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table
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Mathematics, 23.10.2019 13:00
Biology, 23.10.2019 13:00
Mathematics, 23.10.2019 13:00
Mathematics, 23.10.2019 13:00
Physics, 23.10.2019 13:00
Mathematics, 23.10.2019 13:00
Mathematics, 23.10.2019 13:00
Mathematics, 23.10.2019 13:00
Mathematics, 23.10.2019 13:00