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Either the oxidation part or the reduction part of a redox reaction.

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Colloid

A heterogeneous mixture in which solute-like particles do not settle out.

Emission Spectrum

Spectrum associated with emission of electromagnetic radiation by atoms (or other species) resulting from electronic transitions from higher to lower energy states.

 

Physical Change

A change in which a substance changes from one physical state to another but no substances with different composition are formed. Example Gas to Liquid - Solid.

 

Denaturation

A process pertaining to a change in structure of a protein form regular to irregular arrangement of the polypeptide chains.

Acid

A substance that produces H+(aq) ions in aqueous solution. Strong acids ionize completely or almost completely in dilute aqueous solution. Weak acids ionize only slightly. Chemicals or substances having the property of an acid are said to be acidic.

Dispersing Medium

The solvent-like phase in a colloid.

Phase Diagram

Diagram that shows equilibrium temperature-pressure relationships for different phases of a substance.

Percent by Mass

100% times the actual yield divided by theoretical yield.

Polymorphous

Refers to substances that crystallize in more than one crystalline arrangement.

Chemistry of the sky

Chemistry can teach us about the composition of celestial bodies and determine their age.