What are the main tybes of mixture​

Which is the most likely way an automotive engineer would use chemistry

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.

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume