Chemistry, 06.01.2021 16:50 llamawrench7366
Vanadium-48 has a half life of 16 days. If a 800.0 gram sample is allowed to stand for 80.0 days how much vanadium-48 will remain?
Answers: 2
Chemistry, 21.06.2019 16:10
Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 245 mmhg ; ar, 119 mmhg ; and o2, 163 mmhg . the mixture also contains helium gas. part a what is the partial pressure of the helium gas? phe p h e = nothing mmhg request answer part b what mass of helium gas is present in a 10.2-l sample of this mixture at 283 k ? m m = nothing g request answer
Answers: 1
Chemistry, 22.06.2019 12:00
What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist
Answers: 2
Chemistry, 22.06.2019 13:10
The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes.which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature.sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent
Answers: 1
Vanadium-48 has a half life of 16 days. If a 800.0 gram sample is allowed to stand for 80.0 days how...
Mathematics, 18.09.2021 08:30
Social Studies, 18.09.2021 08:30
Mathematics, 18.09.2021 08:30
Social Studies, 18.09.2021 08:30
Mathematics, 18.09.2021 08:30
English, 18.09.2021 08:30
Mathematics, 18.09.2021 08:30
Mathematics, 18.09.2021 08:30
Mathematics, 18.09.2021 08:30
Mathematics, 18.09.2021 08:30
English, 18.09.2021 08:30