Putting rock salt on the roads during a snowstorm is an example of: A. Boiling point elevation
B. Freezing point depression
C. Vapor pressure lowering
D. Vapor pressure raising

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?

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

All motion is caused by force? true or false