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Wednesday, February 9, 2011
Carbon monoxide (ethan's work)
Carbon monoxide:
Carbon monoxide is a harmful compound which consists of two harmless elements. The two harmless elements are carbon and oxygen so that is why Carbon monoxide's symbol is "CO".
Constituent elements:
Carbon--- it is nonmetallic and tetravalent which makes four electrons available to form covalent chemical bonds. Carbon, in all forms, are very stable and this is why it requires high temperature to react with oxygen to form CO. It is the 15th most abundant element in the earth's crust and is present in all lifeforms like human bodies.
Oxygen---it is a member of the chalcogen group on the periodic table and is highly reactive which readily forms compounds with almost all other elements in the periodic table. Oxygen, is also colorless, odorless and tasteless and is needed for living things to survive. It is the third most abundant element in the earth's crust and was discovered in 1773 or earlier.
Formation:
Carbon and oxygen is connected by a triple bond. This bond consists of two covalent bonds and one dative covalent bond. Covalent bond is a form of chemical bonding where elements share electrons between each other. Carbon has 4 electrons while oxygen has only 6 electrons. This shows that they do not have a full outer valence shell so they have to share electrons. In the end, after the two elements share electrons and have full valence shells making the element stable and forming a new compound.
Dot and cross diagram: LOOK ABOVE
Sources:
http://en.wikipedia.org/wiki/Carbon_monoxide
http://sixthsense.osfc.ac.uk/chemistry/bonding/covalent.asp
http://en.wikipedia.org/wiki/Oxygen
http://en.wikipedia.org/wiki/Carbon
Done by: Ethan Teo (12) 2a2
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