The mass of a solid sample was measured three times with the following results:
Trial
Mass (g)
8.45
2
14.44
3
3
1.45
If the actual mass of the solid sample is 14.55 g, which of the below statements best
describes the data?
The data are inaccurate and imprecise
The data are inaccurate but precise
The data are accurate but imprecise
The data are accurate and precise
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.
Answers: 1
Chemistry, 23.06.2019 11:00, artiomtyler007
Find the enthalpy of neutralization of hcl and naoh. 87 cm3 of 1.6 mol dm-3 hydrochloric acid was neutralized by 87 cm3 of 1.6 mol dm-3 naoh. the temperature rose from 298 k to 317.4 k. the specific heat capacity is the same as water, 4.18 j/k g. a. -101.37 kj b. 7055 kj c. 10,1365 kj
Answers: 1
Chemistry, 23.06.2019 12:00, cooltrey777
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The mass of a solid sample was measured three times with the following results:
Trial
Mass (g...
Mass (g...
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