The longer an analyte remains on the column, the broader the peak becomes. peaks widen with time on column due to: a. viscosity. b. adsorption. c. absorption. d. diffusion. e. effusion.

In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound microscope does not? a. simultaneous observation b. polarization c. fluorescence d. higher magnification

What is the correct lewis dot structure for arsenic?

How does the attraction between particles affect the ability of a solvent to dissolve in a substance