Science / Chemistry / Polyatomic Ion: A polyatomic ion is a charged particle that contains more than two covalently bound atoms. See Polyatomic Ions for more.
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Science / Chemistry / Oxidation Half Reaction: That part of a redox reaction that involves loss of electrons. In the oxidation half reaction, the oxidation number of one or more atoms within the reactants is increased. MORE
Science / Biology / Oxidation: The loss of electrons from the outer shell of an atom; often accompanied by the transfer of a proton and thus involves the loss of a hydrogen ion. The loss of electrons or hydrogens in a chemical reac MORE
Science / Chemistry / Oxidation Number: A convention for representing a charge of an atom embedded within a compound, if the compound were purely ionic. For example, H2O is a covalent compound; if it were ionic, the hydrogens would be H+ (o MORE
Entertainment / Photography / Oxidation Product: Is the chemical produced by a color developer during the conversion of exposed silver halides to black metallic silver. MORE
Business / Agriculture / Packer Concentration: The degree to which a few large firms dominate total sales within segments of the meat packing industry, which, some farmers and other critics contend, can cause or at least contribute to lower prices MORE
Science / Marine Biology / Oxygen Dissociation Curve: A curve showing the percent saturation of a blood pigment, such as hemoglobin, as a function of oxygen concentration of the fluid MORE