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A solid compound that contains a definite percentage of bound water.

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Semipermable Membrane

A thin partition between two solutions through which certain molecules can pass but others cannot.

Chemistry of the sky

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

Substitution Reaction

A reaction in which an atom or a group of atoms is replaced by another atom or group of atoms.

Electrodes

Surfaces upon which oxidation and reduction half-reactions, occur in electrochemical cells.

Group

A vertical column in the periodic table, also called a family.

Ionization Constant

Equilibrium constant for the ionization of a weak electrolyte.

Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.

Mechanism

The sequence of steps by which reactants are converted into products.

Strong Electrolyte

A substance that conducts electricity well in a dilute aqueous solution.

 

Boron Hydrides

Binary compounds of boron and hydrogen.