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Descibes the quantitative (mass) relationships among elements in compounds.

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Avogadro's Law

At the same temperature and pressure, equal volumes of all gases contain the same number of molecules.

Binding Energy (nuclear binding energy)

The energy equivalent (E = mc^2) of the mass deficiency of an atom.  where: E = is the energy in joules, m is the mass in kilograms, and c is the speed of light in m/s^2

Ostwald Process

A process for the industrial production of nitrogen oxide and nitric acid from ammonia and oxygen.

The most expensive metal in the world

Do you think the most expensive metal is gold? No! On earth there are more valuable metals. But we need to divide the value of metals that occur in nature, and metals - isotopes, which are obtained in special laboratories. Let’s look at natural metals first.

Derivative

A compound that can be imagined to arise from a partent compound by replacement of one atom with another atom or group of atoms. Used extensively in orgainic chemistry to assist in identifying compounds.

Mass Number

The sum of the numbers of protons and neutrons in an atom, an integer.

Standard Reaction

A reaction in which the numbers of moles of reactants shown in the balanced equation, all in their standard states, are completely converted to the numbers of moles of products shown in the balanced equation, also sall at their standard state.

Heterogeneous Equilibria

Equilibria involving species in more than one phase.

Henry's Law

The pressure of the gas above a solution is proportional to the concentration of the gas in the solution.

Neutralization

The reaction of an acid with a base to form a salt and water. Usually, the reaction of hydrogen ions with hydrogen ions to form water molecules.