In general, sound travels faster through
solids than through gases
gases than through solids
empty space than through matter
gases than through liquids
how has light been described?
as only a particle
as neither a wave nor a particle
as both a wave and a particle
as only a wave
what is amplitude?
amplitude is the number of complete waves that pass a point in a second.
amplitude is the height of a wave.
amplitude is the distance between two crests or two troughs.
amplitude is the time it takes for one complete wave to pass a given point.

Calculate the change in entropy if br2(l) is converted into gaseous br atoms. s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)

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?

Table sugar completely dissolved in water is an example of a?