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the use of a catalyst to bring about the cracking of mineral oils that boil at high temperatures.
temperature at which a substance changes phase from a liquid to a solid at a specific or fixed...
reactions that cause the surroundings to cool. Heat is taken in.
the ratio of actual yield to theoretical yield in a chemical reaction.
(also called dative covalent bond) one atom contributes both electrons (or a lone pair of...
the sum of the atomic masses of the atoms in a molecule.