Ch 18 Quizs

oxidation number

• A measure of an atom's mass

• A number assigned to an atom or ion to indicate its degree of oxidation or reduction

• The total number of electrons in an atom

• A value representing the temperature of a substance

species

• Any kind of chemical unit involved in a process

• A group of organisms that can interbreed

• A classification of living organisms

• A type of habitat for wildlife

oxidation-reduction reaction/redox reaction

• A chemical reaction in which electrons are transferred from one substance to another.

• A reaction that involves the absorption of light energy.

• A process where two substances combine to form a single product.

• A reaction that only involves the transfer of protons.

half-reaction

• A process that involves the transfer of protons in a chemical reaction.

• One of two parts of a redox reaction-the oxidation half, which shows the number of electrons lost when a species is oxidized, or the reduction half, which shows the number of electrons gained when a species is reduced.

• A reaction that occurs in a single step without intermediates.

• A type of reaction that only involves the formation of ionic compounds.

oxidation

• The gain of electrons by a reacting substance.

• The loss of electrons from a reacting substance.

• The transfer of protons in a chemical reaction.

• The formation of a covalent bond between two atoms.

oxidizing agent

• A substance that oxidizes another substance by accepting its electrons

• A substance that reduces another substance by donating its electrons

• A substance that increases the temperature of a reaction

• A substance that acts as a catalyst in a chemical reaction

reduction

• The loss of electrons by a reacting substance

• The gain of electrons by a reacting substance

• The process of increasing oxidation states

• The reaction of a substance with oxygen

reducing agent

• A substance that increases the oxidation state of another substance

• A substance that reduces another substance by losing electrons

• A substance that does not participate in a chemical reaction

• A substance that absorbs electrons from another substance

oxidation number method

• A technique used to balance redox reactions based on the transfer of electrons or ions.

• A method for calculating the molecular weight of compounds.

• A process for determining the acidity of solutions.

• A technique for measuring the temperature of chemical reactions.