Chemistry, 12.11.2019 20:31 tahjaybenloss16
21. an electron is excited to a higher energy level with 5.3 units of energy. when it relaxes to the ground
state, the emitted photon will have which of the following energies?
a. greater than 5.3 units
b. 5.3 units
c. less than 5.3 units
d. some integer multiplied by 5.3 units
Answers: 3
Chemistry, 21.06.2019 13:00
Identifying limitations of kinetic-molecular theorya chemist is studying the properties of a gas under various conditions. he observes that when the gas is at room temperature and low pressure, it behaves as an ideal gas. when the gas is cooled to 10 kelvin and is placed under high pressure, however, it deviates significantly from an ideal .
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Chemistry, 21.06.2019 14:00
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Chemistry, 21.06.2019 19:00
Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?
Answers: 2
Chemistry, 22.06.2019 01:50
Ase your answer to this question on the information below.hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant.the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen.chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product.nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.
Answers: 1
21. an electron is excited to a higher energy level with 5.3 units of energy. when it relaxes to the...
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