A catalyst that exists in a different phase (solid, liquid or gas) from the reactants, a contact catalyst.
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Hydrolysis Constant
An equilibrium constant for a hydrolysis reaction.
Condensed Phases
The liquid and solid phases, phases in which particles interact strongly.
Complex Ions
Ions resulting from the formation of coordinate covalent bonds between simple ions and other ions or molecules.
Covalent Compounds
Compounds containing predominantly covalent bonds.
Percent Purity
The percent of a specified compound or element in an impure sample.
Functional Group
A group of atoms that represents a potential reaction site in an organic compound.
Endothermic
Describes processes that absorb heat energy.
Safranine
Also called "phenosafranine". A purplish-red, water-soluble dye, C18H14N4, used for textiles and as a stain in microscopy.
Mass Number
The sum of the numbers of protons and neutrons in an atom, an integer.
Hydrometer
A device used to measure the densities of liquids and solutions.
