Rachel is trying to identify an unknown substance in her lab. her lab has a triple beam balance, weigh dishes, acetic acid, water, and beakers. she wants to observe the compound's chemical properties in her analysis. describe a process that would allow her to do this.

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.

Under which circumstances are kp and kc equal for the reaction aa(g)+bb(g)⇌cc(g)+dd(g)?

What conclusion can you draw from this experiment about the components of the black ink?