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a solvent able to dissolve a large number of different chemical compounds. Water is the universal solvent.
drawing a line in the diagram of a molecule to indicate where electrons are shared.
four shared electrons, or two shared pairs of electrons (or two covalent bonds) between the same...
a chemical reaction in which a substance reacts to form two or more simpler substances.
a relative measure of the mass contribution of each component in a compound. The percentage...