In general, what does a spectrometer do?
2. What parts of the electromagnetic spectrum are most commonly analyzed by
spectrometers?
3. What are the parts of a spectrometer of the type used to analyze visible light?
4. How are the types of spectra obtained by spectrometers in the visible range
categorized? What do these different types of spectra look like?

The number of medals awarded to the track team during the season.

Van der waals forces are temporary electromagnetic forces established between uncharged atoms. some neutral molecules, when close together, can become temporarily “charged,” as electrons move around the atom. water is a polar molecule, the side of the molecule that the hydrogens bond to being more positive, and the opposite side bound to the lone pairs of electrons being more negative. this means that it participates in dipole-dipole interaction (non-polar exhibits dispersion forces), and it has the capacity for hydrogen bonding.