Which statement explains why increasing the
temperature increases the rate of a chemical
reaction, while other conditions remain the same?
(1) the reacting particles have less energy and
collide less frequently.
(2) the reacting particles have less energy and
collide more frequently.
(3) the reacting particles have more energy and
collide less frequently.
(4) the reacting particles have more energy and
collide more frequently.

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

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?

Chromosome 17 is made of over million base pairs.