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The relative amounts of reactants and products involved in a reaction, maybe the ratio of moles. millimoles, or masses.


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Boron Hydrides

Binary compounds of boron and hydrogen.

Lanthanide Contraction

A decrease in the radii of the elements following the lanthanides compared to what would be expected if there were no f-transition metals.

Fatty Acids

An aliphatic acid, many can obtained from animal fats.

Valence Bond Theory

Assumes that covalent bonds are formed when atomic orbitals on different atoms overlap and the electrons are shared.

Boiling Point

The temperature at which the vapor pressure of a liquid is equal to the applied pressure, also the condensation point

Allotropic Modifications (Allotropes)

Different forms of the same element in the same physical state.

Addition Reaction

A reaction in which two atoms or groups of atoms are added to a molecule, one on each side of a double or triple bond. Types of addition reaction include electrophilic, nucleophilic (polar) and free radical addition (non-polar).

Chemical Kinetics

The study of rates and mechanisms of chemical reactions and of the factors on which they depend.

Buffer Solution

Solution that resists change in pH, contains either a weak acid and a soluble ionic salt of the acid or a weak base and a soluble ionic salt of the base.

Acidic Salt

A salt containing an ionizable hydrogen atom. Acidic salt does not necessarily produce acidic solutions.