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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)
ratio of atoms is 1 : 4 with a bond angle of 109,50 example CH4
a measure of the bond energy of a chemical bond. A large amount of energy is needed to break a...
reactions that raise the temperature of the surroundings by liberating energy