The silica that makes up the stationary phase in tlc chromatography is more polar than the mobile phase. what then might the relative positions of the analgesics on the developed tlc plate tell you about the polarity of these analgesics? does this match your expectations based on their structures?

Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom

List four observations that indicate that a chemical reaction may be taking place

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump