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a chemical reaction in which new substances are formed.
the use of a catalyst to bring about the cracking of mineral oils that boil at high temperatures...
The empirical formula of an ionic compound or a covalent network (macro-molecule) structure. To...
electromagnetic waves, similar to X-rays, but with a much shorter wavelength.
making a solution by mixing a substance (solute) with a liquid (solvent).
a special type of ion exchange reaction in which either carbonic acid or sulfurous acid is...