Friday, February 4, 2011

Ong Jie Hao(20) 2P2 4/2/11

1.       Carbon monoxide (CO)

Carbon monoxide (CO) is an odourless, colourless gas that is very dangerous to human health. Even at low levels of exposure, carbon monoxide can cause serious health problems. It is produced by a number of different fuels. Be aware of some of the more common sources of carbon monoxide emissions and protect yourself and your loved ones by installing a carbon monoxide detector in your home.

Health effects
Inhaled carbon monoxide will rapidly accumulate in the blood and deplete its ability to carry oxygen throughout the body. Depending on the amount of CO inhaled, the significant harmful effects caused by this gas can lead to carbon monoxide poisoning. Its ionic, as iron is a positively charged metal and sulphate is a negatively charged non-metal.
Carbon monoxide is made up of 2 different elements, oxygen and carbon.

Bonding

1.      Carbon monoxide is a covalent bond. As carbon monoxide is made up of oxygen and carbon, both are non-metals thus it is a covalent bond. 


Carbon

1.       Carbon is the chemical element with the symbol C and the atomic number 6. As a member of group 14 on the periodic table, it is non-metallic and tetravalent—making four electrons available to form covalent chemical bonds. There are three naturally occurring isotopes, with 12C and 13C being stable, while 14C is radioactive, decaying with a half-life of about 5730 years. Carbon is one of the few elements known since antiquity. The name "carbon" comes from Latin carbo, coal.

Carbon is the 15th most abundant element in the Earth's crust and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. It is present in all known life forms, and in the human body carbon is the second most abundant element by mass (about 18.5%) after oxygen. This abundance, together with the unique diversity of organic compounds and their unusual polymer-forming ability at the temperatures commonly encountered on Earth, make this element the chemical basis of all known life.

Oxygen

Oxygen is the chemical element with the symbol O and the atomic number 8. At standard temperature and pressure, two atoms of the element bind to form di-oxygen, a colourless, odourless, tasteless diatomic gas with the formula O2.

Oxygen is also a member of the chalcogen group on the periodic table, and is a highly reactive non-metallic element that readily forms compounds (notably oxides) with almost all other elements. By mass, oxygen is the third most abundant element in the universe after hydrogen and helium and the most abundant element by mass in the Earth's crust, making up almost half of the crust's mass. Free oxygen is too chemically reactive to appear on Earth without the photosynthetic action of living organisms, which use the energy of sunlight to produce elemental oxygen from water. Elemental O2 only began to accumulate in the atmosphere after the evolutionary appearance of these organisms, roughly 2.5 billion years ago. Diatomic oxygen gas constitutes 20.8% of the volume of air.

Carbon Monoxide

Carbon monoxide (CO), also called carbonous oxide, is a colourless, odourless and tasteless gas which is slightly lighter than air. It is highly toxic to humans and animals in higher quantities, although it is also produced in normal animal metabolism in low quantities, and is thought to have some normal biological functions.

Formation

It consists of one carbon atom and one oxygen atom, connected by a triple bond which consists of two covalent bonds as well as one dative covalent bond. It is the simplest oxocarbon, and is an anhydride of formic acid. In coordination complexes the carbon monoxide ligand is called carbonyl.

Carbon monoxide dot diagram





















Acknowledgements:


http://www.wikipedia.org/

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