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An algebraic increase in the oxidation number, may correspond to a loss of electrons.

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Endothermic

Describes processes that absorb heat energy.

Enzyme

A protein that acts as a catalyst in biological systems.

Oxidation-reduction Reactions

Reactions in which oxidation and reduction occur, also called redox reactions.

Solubility Product Principle

The solubility product constant expression for a slightly soluble compound is the product of the concentrations of the constituent ions, each raised to the power that corresponds to the number of ions in one formula unit.

Cathode Ray Tube

Closed glass tube containing a gas under low pressure, with electrodes near the ends and a luminescent screen at the end near the positive electrode, produces cathode rays when high voltage is applied.

Electromagnetic Radiation

Energy that is propagated by means of electric and magnetic fields that oscillate in directions perpendicular to the direction of travel of the energy.

Compressed Gas

A gas or mixture of gases having, in a container an absolute pressure exceeding 40 psi at 21.1°C (70°F)

Stoichiometry

Description of the quantitative relationships among elements and compounds as they undergo chemical changes.

Unsaturated Hydrocarbons

Hydrocarbons that contain double or triple carbon-carbon bonds.

Capillary

A tube having a very small inside diameter.