Free interactive and download to print GCSE Chemistry flashcards to help prepare for your GCSE exams. Revise topics such as calculations in chemistry and atom economy, percentage yield and gas ...

This video is about the mole, the unit of measurement for the number of particles in a substance.

The main point of his argument is that “a mole is just a numerical value, and has as much physical meaning as the term dozen.” Could this do for chemistry what the downgrading of Pluto did for ...