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The time required for half of a reactant to be converted into product(s). The time required for half of a given sample to undergo radioactive decay.

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20 interesting chemistry facts

20 interesting chemistry facts.

Hydrometer

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

Eluate

Solvent (or mobile phase) which passes through a chromatographic column and removes the sample components from the stationary phase.

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

Viscosity

Resistance offered by the molecules of a liquid to flow is termed as viscosity.

Hund's Rule

All orbitals of a given sublevel must be occupied by single electrons before pairing begins.

Why do copper products change color, and what is the name of the process?

Probably, every person wants to know, why over time the copper turns green and becomes bloomed. This is easy to explain: that film is called patina.

Solvation

The process by which solvent molecules surround and interact with solute ions or molecules.

Solvolysis

The reaction of a substance with the solvent in which it is dissolved.

Lewis Acid

Any species that can accept a share in an electron pair.