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Change in the concentration of a reactant or product per unit time.

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Flotation

Method by which hydrophobic (water-repelling) particles of an ore are separated from hydrophilic (water-attracting) particles of a metallurgical pretreatment process.

Henry's Law

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

Fuel Cells

Voltaic cells in which the reactants (usually gases) are supplied continuously.
A voltaic cell that converts the chemical energy of a fuel and an oxidizing agent directly into electriacl energy on a continuous basis.

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.

Accuracy

How closely a measured value agrees with the correct value.

Hydride

A binary compound of hydrogen.

 

Nucleus

The very small, very dense, positively charged center of an atom containing protons and neutrons, as well as other subatomic particles.

Ternary Acid

A ternary compound containing H, O, and another element, often a nonmetal.

Electron Configuration

Specific distribution of electrons in atomic orbitals of atoms or ions.

Primary Voltaic Cells

Voltaic cells that cannot be recharged, no further chemical reaction is possible once the reactants are consumed.