Chemistry, 31.12.2019 17:31 nengliangli523
Asample of helium occupies 0.56 l at 988 mm hg and 25 celsius. if the sample is transferred to a 1.0l flask at the same temperature, what will the gas pressure be in the new flask?
solve using boyle’s law
Answers: 2
Chemistry, 21.06.2019 19:30
If the element whose electric configuration ends in the d sublevel, the element is calssified as? a.inner transition b.noble gases c.representative d. transition
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Chemistry, 22.06.2019 10:00
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90
Answers: 1
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Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.
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Chemistry, 22.06.2019 10:10
Stage in which a typical star has completely stopped fusion
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Asample of helium occupies 0.56 l at 988 mm hg and 25 celsius. if the sample is transferred to a 1.0...
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