Chemistry, 15.12.2020 05:30 dpchill5232
. Look at the periodic table, how much does one mole of a Hydrogen atom weigh? Why is the molar mass of hydrogen (H2) 2.02 g/mol in the example 1 above?
Answers: 1
Chemistry, 22.06.2019 13:00
16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.
Answers: 2
Chemistry, 22.06.2019 14:00
The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.
Answers: 3
Chemistry, 22.06.2019 14:30
How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.
Answers: 2
Chemistry, 22.06.2019 16:00
How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?
Answers: 3
. Look at the periodic table, how much does one mole of a Hydrogen atom weigh? Why is the molar mass...
Mathematics, 14.01.2021 20:50
English, 14.01.2021 20:50
Social Studies, 14.01.2021 20:50
Biology, 14.01.2021 20:50
Mathematics, 14.01.2021 20:50
Mathematics, 14.01.2021 20:50
Physics, 14.01.2021 20:50
History, 14.01.2021 20:50
Mathematics, 14.01.2021 20:50
English, 14.01.2021 20:50
Chemistry, 14.01.2021 20:50
Physics, 14.01.2021 20:50