Which best describes the effect of J. J. Thomson’s discovery? The accepted model of the atom was changed.
The accepted model of the atom was supported.
Cathode ray tubes were no longer used in experiments due to poor results.
Cathode ray tubes became the only instrument of use in the study of atoms.

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?