Covalent bond resulting from the sharing of two electrons (one pair) between two atoms.
Latest Articles
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Chemistry of the sky
Chemistry can teach us about the composition of celestial bodies and determine their age.
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Protein Design: Automated protein discovery and synthesis
In this paper I describe (theoretically) the method(s) of automated protein discovery and synthesis.
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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...
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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...
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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.
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Autoionization
An ionization reaction between identical molecules.
Third Law of Thermodynamics
The entropy of a hypothetical pure, perfect, crystalline sustance at absolute zero temperature is zero.
Molarity
Number of moles of solute per litre of solution.
Metallic Conduction
Conduction of electrical current through a metal or along a metallic surface.
Where is ozone used?
Ozone is widely used in various areas of our life. It is used in medicine, in industry, in everyday life.
Essential Oil
A plant extract that has a distinctive odour or flavour.
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| General Chemistry Online - Rich resource for students and teachers of introductory chemistry. Includes interactive course guides and tutorials, an exam survival guide, reference tables, self-grading quizzes and exams, a searchable glossary, a question and answer board, answers to over 300 frequently asked questions, and a chemical trivia quiz. |
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| Chemistry & Environmental Dictionary - Contains definitions for many chemistry, environmental and other related technical terms and acronyms. |
| EDF Chemical Scoreboard - Toxic Release Inventory data for the US. Sources and amounts of toxic chemicals released to air and water. Also has information on health effects and other topics. |
| Chemistry Articles - Collection of chemistry and chemical related articles. |
K Capture
Absorption of a K shell (n=1) electron by a proton as it is converted to a neutron.
Amine Complexes
Complex species that contain ammonia molecules bonded to metal ions.
Reaction Stoichiometry
Description of the quantitative relationships among substances as they participate in chemical reactions.
