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the mass of any substance relative to the amount of the substance; the mass of one mole of any substance, whether it is an atom, a molecule or a compound expressed in grams per mole (g.mol-1)
the ratio of actual yield to theoretical yield in a chemical reaction.
the movement of particles from an area of higher concentration to an area of lower concentration...
a chemical reaction where two molecules combine to form one single molecule. The elimination of...
coal that is heated in the absence of air to about 1 000 °C to remove volatile substances.
the arrangement of electrons in the different orbitals in an atom.