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Trapping of heat at the surface of the earth by carbon dioxide and water vapour in the atmosphere.

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  • 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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    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...

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    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?

  • Use of diamonds

    Diamond is a crystalline modification of pure carbon formed in the deep interior of the Earth, in the upper mantle at depths of more than 80-100 kilometers, at exceptionally high pressure and temperature. It is the most precious stone, the hardest and most wear-resistant mineral, the most...

  • 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...



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Gangue

Sand, rock, and other impurities surrounding the mineral of interest in an ore.

Transition State Theory

Theory of reaction rates that states that reactants pass through high-energy transition states before forming products.

Cis-Trans Isomerism

A type of geometrical isomerism related to the angles between like ligands.

Heterogeneous Mixture

A mixture that does not have uniform composition and properties throughout.

Heat of Vaporization

The amount of heat required to vaporize one gram of a liquid at its boiling point with no change in temperature. Usually expressed in J/g. The molar heat of vaporization is the amount of heat required to vaporize one mole of liquid at its boiling point with no change in temperature and usually expressed ion kJ/mol.

Evaporization

Vaporization of a liquid below its boiling point.

Dissociation

In aqueous solution, the process in which a solid ionic compound separates into its ions.

Band of Stability

Band containing nonradioactive nuclides in a plot of number of neutrons versus atomic number.

Pauli Exclusion Principle

No two electrons in the same atom may have identical sets of four quantum numbers.

Oxide

A binary compound of oxygen.