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A chemical compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions and that have a unique and defined chemical structure. Chemical compounds consist of a fixed ratio of atoms that are hold together in a defined spatial arrangement by chemical bonds. Chemical compounds can be compound molecules hold together by covalent bonds, salts hold together by ionic bonds, metallic compounds hold together by metallic bonds, or complexes hold together by coordinate covalent bonds. Substances such as pure chemical elements and elemental molecules consisting of multiple atoms of a single element (such as H2, S8, etc.) are not considered chemical compounds.

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Blogs for Chemical Compound

chemical compound -- Britannica Online Encyclopedia

... chemical compound, any substance composed of identical molecules consisting of atoms of two or more chemical ... BLOG. LOG IN. Skip this Advertisement ...www.britannica.com/EBchecked/topic/108614/chemical-compound

Chemical Compound in Chocolate that Promotes Cardiovascular Health ...

Chemical Compound in Chocolate that Promotes Cardiovascular Health Identified ... Sugar Savvy - group blog on the world of sweets ...www.typetive.com/candyblog/item/chemical_compound_in_chocola...

ChemSpider Blog " Blog Archive " Is there 100% in chemical names and ...

2 Responses to "Is there 100% in chemical names and compounds?" Rich Apodaca says: ... chemical compound is identified by it's name or names. Naming chemical ...www.chemspider.com/blog/is-there-100-in-chemical-names-and-c...

Patent Prospector: Chemical Obviousness

... current status of case law regarding chemical compound obviousness, and holds ... law of obviousness of a chemical compound evolved from late nineteenth century ...www.patenthawk.com/blog/2007/06/chemical_obviousness_1.html

Visualizing High Dimensional Data: On similarity metrics for chemical ...

On similarity metrics for chemical compounds. Recently, Yap Chun Wei has posted a dataset on the pharmine blog. ... fingerprint of a compound is here a vector ...jamesxli.blogspot.com/2008/09/on-similarity-metrics-for-chem...

Wikipedia About Chemical Compound

A chemical compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions and that have a unique and defined chemical structure. Chemical compounds consist of a fixed ratio of atoms that are hold together in a defined spatial arrangement by chemical bonds. Chemical compounds can be compound molecules hold together by covalent bonds, salts hold together by ionic bonds, metallic compounds hold together by metallic bonds, or complexes hold together by coordinate covalent bonds. Substances such as pure chemical elements and elemental molecules consisting of multiple atoms of a single element (such as H2, S8, etc.) are not considered chemical compounds.

Elements form compounds to become more stable. They become stable when they have the maximum number of possible electrons in their outermost energy level, which is normally two or eight valence electrons. This is the reason that noble gases do not frequently react: they already possess eight valence electrons (the exception being helium, which requires only two valence electrons to achieve stability).

Wider definitions

There are some exceptions to the definition above. Certain crystalline compounds are called "non-stoichiometric" because they vary in composition due to either the presence of foreign elements trapped within the crystal structure or a deficit or excess of the constituent elements. Some compounds regarded as chemically identical may have varying amounts of heavy or light isotopes of the constituent elements, which will make the ratio of elements by mass vary slightly. A compound therefore may not be completely homogenous, but for most chemical purposes it can be regarded as such.

Compounds compared to mixtures

The physical and chemical properties of compounds are different from those of their constituent elements. This is the one of the main criteria for distinguishing a compound from a mixture of elements or other substances because a mixture's properties are generally closely related to and dependent on the properties of its constituents. Another criterion for distinguishing a compound from a mixture is that the constituents of a mixture can usually be separated by simple, mechanical means such as filtering, evaporation, or use of a magnetic force, but the components of a compound can only be separated by a chemical reaction. Conversely, mixtures can be created by mechanical means alone, but a compound can only be created (either from elements or from other compounds, or a combination of the two) by a chemical reaction.

Some mixtures are so intimately combined that they have some properties similar to compounds and may easily be mistaken for compounds. One example is alloys. Alloys are made mechanically, most commonly by heating the constituent metals to a liquid state, mixing them thoroughly, and then cooling the mixture quickly so that the constituents are trapped in the base metal. Other examples of compound-like mixtures include intermetallic compounds and solutions of alkali metals in liquid ammonia.

Search results for Chemical Compound

Chem4Kids.com: Atoms: Compounds

Chem4Kids.com! The web site that teaches the basics of chemistry to everyone! ... When we talk about compounds, bonds are built and broken down by chemical forces. ...www.chem4kids.com/files/atom_compounds.html

Chemical compounds - definition of Chemical compounds by the Free ...

Definition of Chemical compounds in the Online Dictionary. Meaning of Chemical compounds. ... iron carbide - a chemical compound that is a constituent ...www.thefreedictionary.com/Chemical+compounds

compound: Definition, Synonyms from Answers.com

... compound left: pinnately compound leaf right: palmately compound leaf ... A compound is a chemical substance in which atoms combine in such a way that the ...www.answers.com/topic/compound

Chemical Compounds - Succeed in Chemistry: School for Champions

Explanation of Chemical Compounds - Succeed in Chemistry: School for Champions ... Compounds are the chemical bonding of two or more different elements into a ...www.school-for-champions.com/chemistry/compounds.htm

Chapter 3 - An Introduction to Chemistry: Chemical Compounds

construct systematic names for some chemical. compounds, and (5) describe the characteristics of. certain kinds of chemical compounds. The chapter ...preparatorychemistry.com/Bishop_Book_3_eBook.pdf

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News about Chemical Compound

High-pressure compound could be key to hydrogen-powered vehicles

Stanford ReportResearchers have discovered a high-pressure form of ammonia borane that could potentially fuel hydrogen-powered vehicles.http://news.stanford.edu/news/2009/may13/ammon-051309.html

Cocaine trade revitalizes Peruvian rebels

AP via Yahoo! Singapore NewsThe last town on a rutted dirt road in Peru's most prolific cocaine-producing highland valley, Union Mantaro has no police post, no church and no health clinic.http://sg.news.yahoo.com/ap/20090511/twl-lt-peru-cocaine-s-w...

Isle researcher involved in promising cancer find

Honolulu Star-BulletinA Hawaii cancer researcher and his international colleagues have figured out how to manufacture a molecule with anti-cancer potential.http://www.starbulletin.com/news/20090510_isle_researcher_in...

Multimedia exhibit explores effects of Agent Orange on Vietnam

KPCC PasadenaSteven Cuevas: During the Vietnam War, the U.S. military cleared vegetation with an herbicide known as Agent Orange. Scientists have linked the chemical compound to cancer and other health problems. KPCC's Steven Cuevas visited a multimedia exhibit at UC Riverside's California Museum of Photography that explores the effects of Agent Orange on Vietnam's environment and people.http://www.scpr.org/news/stories/2009/05/06/19_agent_orange_...

Arts & Entertainment

The Jewish AdvocateThe Alchemy of Air: A Jewish Genius, a Doomed Tycoon, and the Scientific Discovery That Fed the World but Fueled the Rise of Hitler Thomas Hager, Harmony Books Two Jewish scientists' attempts to stave off world hunger result in a nitrogen-based chemical compound that fueled the rise of the Third...http://www.thejewishadvocate.com/news/2009/0508/arts/043.htm...

News about Chemical Compound

IU Researchers Target Telomeres To Attack Tumors

Medical News TodayFind a special type of chemical compound, called an oligonucleotide, that would block access to telomerase and prevent it from doing its job. She began working with a new compound, with the chemical name GRN163L, that had been developed by Geron Corp ... http://www.medicalnewstoday.com/articles/149134.php

Concerns white phosphorus used in Afghan battle

630 WMALThe U.S. says Taliban fighters have used white phosphorus, a spontaneously flammable material that leaves severe chemical burns on flesh, at least four times the last two years. Using white phosphorus to illuminate a target or create smoke is ... http://www.wmal.com/news.asp?c=5159&url=http%3A%2F%2Fhosted%...

The Role of Diet Pills and the Weight Loss Revolution

Best SyndicationThe chemical compound, ingeniously named the P57 can only be found in consistent levels in hoodia gordonii cacti found in the Kalahari. While it is possible to cultivate the endangered cacti in similar environments, such as Texas in the United States ... http://www.bestsyndication.com/?q=node/28966

Phosphorus claim after fatal air strikes in Afghanistan

Guardian Unlimited ... senior officer at the Afghanistan Independent Human Rights Commission, said the organisation was concerned that the chemical ... is an incident immediately after the battle when people from the village took piles of corpses to the governor's compound in ... http://www.guardian.co.uk/world/2009/may/10/afghanistan-atta...

Mettler-Toledo International Inc. Announces Tender Offer for $150 ...

MSN MoneyCentralThe Company also holds top-three market positions in several related analytical instruments and is a leading provider of automated chemistry systems used in drug and chemical compound discovery and development. In addition, the Company is the world's ... http://news.moneycentral.msn.com/provider/providerarticle.as...

Search results for Chemical Compound

Chemical compound: Information from Answers.com

Note: click on a word meaning below to see its connections and related words. The noun chemical compound has one meaning: Meaning #1 : (chemistry) ahttp://www.answers.com/topic/chemical-compound-1

chemical compound - definition of chemical compound by the Free Online ...

Thesaurus Legend: Synonyms Related Words Antonyms. Noun: 1. chemical compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite ... http://www.thefreedictionary.com/chemical+compound

chemical compound - definition of chemical compound in the Medical ...

compound /com·pound/ (kom´pownd) 1. made up of two or more parts or ingredients. 2. a substance made up of two or more materials. 3. in chemistry, a substance consisting of two ... http://medical-dictionary.thefreedictionary.com/chemical+com...

Chemical Compound Outline (Part I)

Major Types Of Chemical Compounds In Plants & Animals. Part I. Carbohydrates, Lipids, Proteins Nucleic Acids & Terpeneshttp://waynesword.palomar.edu/chemid1.htm

chemical compound - Hutchinson encyclopedia article about chemical ...

Chemical substance made up of two or more elements bonded together, so that they cannot be separated by physical means. Compounds are held together by ionic or covalent bonds.http://encyclopedia.farlex.com/chemical+compound

Wikipedia results for Chemical Compound

Chemical compound - Wikipedia, the free encyclopedia

Chemical compound s are pure chemical substances consisting of two or more different chemical elements that cannot be separated into simpler substances and that have a unique and ... http://en.wikipedia.org/wiki/Chemical_compound

Chemical compound microarray - Wikipedia, the free encyclopedia

A chemical compound microarray is a collection of organic chemical compounds spotted on a solid surface, such as glass and plastic. This microarray format is very similar to DNA ... http://en.wikipedia.org/wiki/Chemical_compound_microarray

Chemical substance - Wikipedia, the free encyclopedia

A chemical compound can be either atoms bonded together in molecules or crystals in which atoms, molecules or ions form a crystalline lattice. Compounds based primarily on carbon and ... http://en.wikipedia.org/wiki/Chemical

Aromaticity - Wikipedia, the free encyclopedia

In organic chemistry, the structures of some rings of atoms are unexpectedly stable. Aromaticity is a chemical property in which a conjugated ring of unsaturated bonds, lone pairs ... http://en.wikipedia.org/wiki/Aromatic_chemical_compound

Wikipedia:Chemical sources - Wikipedia, the free encyclopedia

Find this compound by (?) at Gaylord Chemical; Find this compound by (?) at GFS Chemicals (original link: GFS chemicals - A3336) Find this compound by (?) at General Kinetics Inc ... http://en.wikipedia.org/wiki/Wikipedia:Chemical_sources
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Industrial chemical served with BBQ

Industrial chemical served with BBQMay 8: It wasn't the spicy barbecue sauce that burned one customer's mouth at a Fla. restaurant, it was an industrial chemical that somehow got onto his plate of food. WPTV's...Windows Media - Video

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Minn. Bans Plastic Chemical In Baby...

Minn. Bans Plastic Chemical In Baby Bottles, CupsSome studies show Bisphenol-A, or BPA, can leach from plastics into food and liquids, James Schugel reports (1:48).Windows Media - Video

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Answers for Chemical Compound

dorseychemical compound?dorseyPlease visit : http://en.wikipedia.org/wiki/CholesterolCristina FWhat is a chemical compound that affects our environment?Cristina Fcarbon dioxide seems like an obvios one.. or maybe CFC's [chlorofluorocarbons] these [haloalkanes] cause 'holes' in the ozone layer that let harmfull uv rays in and cause skin cancer. try it! good...villeboy205What is the difference between an element and a chemical compound?villeboy205B a compound is a combination of 2 or more elements, therefore having more than one type of atom, so we know that an element has one type of atom.WNBA 777What chemical compound in their “shells” do members of Chrysophyta and Actinopoda have in common?WNBA 777Silicon dioxide, I think. Also known as GLASS. Weird, right?bikini freakoWhat is the longest chemical compound equation?bikini freakoThe is probably the sequence of Chromosome 1 of the Human Genome Project (completed in May, 2006).
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