Which of the following is not a valid set of quantum numbers? n = 2, l = 1, m = 0
n = 1, l = 0, m = 0
n = 3, l = 3, m = 3

im pretty sure its b

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.