What is meant when aniline is referred to as the limiting reagent in the reaction with acetic anhydride.

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

In which phase(s) do the molecules take the shape of the container?

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.