Chemistry, 12.03.2021 04:40 naiomireyes74p2aybs
What is the average speed of a helicopter that flies 50 km in 20 minutes and then 30 km in 10 minutes?
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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.
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What is the average speed of a helicopter that flies 50 km in 20
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