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a temporary unstable high energy composition of atoms representing a transition step between the reactants and products in a chemical reaction.
the SI unit of amount of substance. 1 mole contains the same number of particles as there are in...
the use of a catalyst to bring about the cracking of mineral oils that boil at high temperatures...
the part of the Earth and its atmosphere in which life can exist.
a bond formed when non-metal atoms share a pair of valence electrons to form a molecule.
a chemical cell in which electrical energy from a battery is used to produce chemical reactions...