Chemists reported observing a reaction at room temperature and standard pressure that, based on the amount of helium detected and heat generated, was consistent with a nuclear fusion reaction. However, an area of concern was the lack of neutrons released given the amount of heat produced. They addressed this concern by proposing the form of helium produced did not release the same number of neutrons as other forms of helium. Which statement describes why the majority of chemists would not find this claim credible?
Currently, fusion reactions can only occur at very high temperatures and pressures
The chemists claim is based on conjecture rather than empirical evidence
The report does not explain the electrostatic charges between protons.
Not enough scientists were present to witness the reaction
Answers: 1
Biology, 22.06.2019 11:30, annsmith66
Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?
Answers: 1
Biology, 22.06.2019 14:00, chloejaylevesque
Atest cross can be used to -predict the phenotypes of a monohybrid cross -predict an unknown genotype of a purebred dominant plant -cross-breed dominant and recessive plants -give probabilities that a trait will appear
Answers: 1
Biology, 22.06.2019 16:10, mparra4761
The lake of the ozarks is a human-made lake, so it collects runoff from coal strip-mining, fertilizers, resort wastewaters, and septic drainages. the average lake temperature is between 10∘c and 21∘c. consider the physical requirements for growth and multiplication that would allow fecal coliforms to “blossom” in the lake of the ozarks. which of the following would accurately describe these organisms? check all that apply. psychrophiles facultative halophiles extremophiles mesophiles hyperthermophiles
Answers: 2
Chemists reported observing a reaction at room temperature and standard pressure that, based on the...
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