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Study of chemical changes produced by electrical current and the production of electricity by chemical reactions.

Latest Articles

  • Gas of rotten eggs

    If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.

  • Diamonds Are Forever

    Diamonds are still a girl's best friend, right? We love the shiny gems. They are the most popular rocks sold today. But what exactly are they, anyway? Where do they come from? What else are they used for?

  • Creating Malachite egg

    One of the most interesting and obvious chemical experiments is the experiment on the interaction of copper sulfate and calcium carbonate. The latter is contained in the shell of a simple egg, but copper sulphate should be searched in a chemical reagent store. This experience is simple, but...

  • 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.

  • What are Compound Microscopes?

    Most of the microscopes used today are compound. A compound microscope features two or more lenses. A hollow cylinder called the tube connects the two lenses. The top lens, the one people look through, is called the eyepiece. The bottom lens is known as the objective lens. Below the two lenses is...



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Mole Fraction

The number of moles of a component of a mixture divided by the total number of moles in the mixture.

 

Functional Group

A group of atoms that represents a potential reaction site in an organic compound.

Hund's Rule

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

Common Ion Effect

Suppression of ionization of a weak electrolyte by the presence in the same solution of a strong electrolyte containing one of the same ions as the weak electrolyte.

Voltage

Potential difference between two electrodes, a measure of the chemical potential for a redox reaction to occur.

Salicylaldehyde

An oily, slightly water-soluble liquid, C7H6O2, having an almondlike odor: used chiefly in perfumery and in the synthesis of coumarin.

Ionic Compounds

Compounds containing predominantly ionic bonding.

Mass

A measure of the amount of matter in an object. Mass is usually measured in grams or kilograms.

Electrolysis

Process that occurs in electrolytic cells.

Nonelectrolyte

A substance whose aqueous solutions do not conduct electricity.