Which is more acidic among the following?​

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

Newtons second law deals most cosely with

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.