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Bonding within metals due to the electrical attraction of positively charges metal ions for mobile electrons that belong to the crystal as a whole.

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Formula Weight

The mass of one formula unit of a substance in atomic mass units.

 

Ideal Gas

A hypothetical gas that obeys exactly all postulates of the kinetic-molecular theory.

 

Galvanizing

Placing a thin layer of zinc on a ferrous material to protect the underlying surface from corrosion.

 

Hydrometer

A device used to measure the densities of liquids and solutions.

Molecular Formula

Formula that indicates the actual number of atoms present in a molecule of a molecular substance.

Heterogeneous Equilibria

Equilibria involving species in more than one phase.

Dynamic Equilibrium

An equilibrium in which processes occur continuously, with no net change. When two (or more) processes occur at the same rate so that no net change occurs.

Pauli Exclusion Principle

No two electrons in the same atom may have identical sets of four quantum numbers.

Complex Ions

Ions resulting from the formation of coordinate covalent bonds between simple ions and other ions or molecules.

Dry Cells

Ordinary batteries (voltaic cells) for flashlights. radios, and so on, many are Leclanche cells.