Chemistry, 17.07.2019 06:10 DatBoiCedd
Read the following passage. before rutherford conducted the gold foil experiment, the "plum pudding" model proposed by j. j. thomson offered an explanation for the structure of the atom. rutherford, along with two of his associates hans geiger and ernest marsden, performed an experiment in which an extremely thin metal foil was fired with a beam of alpha particles. the results of the experiment were recorded accurately by another scientist who observed the frequency of alpha particles that passed through the foil unobstructed. use information from the passage to justify whether the characteristics of reliable scientific explanations are present in the development of the atomic theory.
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Which of the following statements is true about planck’s law
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If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution
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Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
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Chemistry, 22.06.2019 16:50
Answer asap need by wednesday morning calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 best answer will be brainliest
Answers: 3
Read the following passage. before rutherford conducted the gold foil experiment, the "plum pudding"...
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