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The study of rates and mechanisms of chemical reactions and of the factors on which they depend.

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  • Ozone

    We breathe 24 hours a day, 7 days a week, consuming about 25 kg of air every day. It turns out that we practically predetermine our health by the air we breathe.

  • 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?

  • Varieties of garnet minerals

    The most famous type of garnet stone is pyrope (flaming). This is the "oldest of garnets", with a dense red color, similar to the grain of an edible garnet. Pyrope has a variety called rhodolite - a stone of dense pink or pink-purple color, which sometimes has the alexandrite effect and is used in...

  • Chemical Safety

    People use chemicals every day for a wide array of purposes, which can include work and house hold duties. Many of us fail to realize that we are actually handling potentially deadly chemicals when we simply clean the bathroom or wash the car. This brings to mind the reason why chemical safety is...

  • 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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Mechanism

The sequence of steps by which reactants are converted into products.

Radiation

High energy particles or rays emitted during the nuclear decay processes.

Law of Definite Proportions (Law of Constant Composition)

The law stating that a pure substance will always have the same percent by weight. Different samples of a pure compound always contain the same elements in the same proportions by mass.

Photon

A packet of light or electromagnetic radiation, also called quantum of light.

 

Amino Acid

Compound containing both an amino and a carboxylic acid group.The --NH2 group.

Electrolyte

A substance whose aqueous solutions conduct electricity.

 

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.

Semiconductor

A substance that does not conduct electricity at low temperatures but does so at higher temperatures.

Vapor

A gas formed by boiling or evaporating a liquid.

Free Radical

A highly reactive chemical species carrying no charge and having a single unpaired electron in an orbital.