Chemistry, 01.02.2021 14:00, cesarcastellan9
What element has the same electron configuration of 1s2 2s2 2p6 3s2 3p6 ?
Answers: 3
Chemistry, 22.06.2019 12:00, daytonalive83481
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, 23.06.2019 00:00, scottykinkade7860
Mercury turns to a vapor at 629.88 k. how much heat is lost when 75.0 g of mercury vapor at 650 k condenses to a liquid at 297 k?
Answers: 1
Chemistry, 23.06.2019 05:50, starfox5454
Which of the following isotopes has the same number of neutrons as phosphorus-31?
Answers: 1
What element has the same electron configuration of 1s2 2s2 2p6 3s2 3p6 ?...
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