Profil public catherinew

Vendredi 30 mai 2014

Sulfur dioxide (also sulphur dioxide) is the chemical compound with the formula SO2. It is a toxic gas with a pungent, irritating smell, that is released by volcanoes and in various industrial processes.Sulfur dioxide is an intermediate in the production of sulfuric acid, being converted...

Vendredi 30 mai 2014

Propene, also known as propylene or methylethylene, is an unsaturated organic compound having the chemical formula C3H6. It has one double bond, and is the second simplest member of the alkene class of hydrocarbons.Propene is the second most important starting product in the petrochemical...

Vendredi 30 mai 2014

Although xenon is rare and relatively expensive to extract from the Earth's atmosphere, it has a number of applications.Xenon is used in light-emitting devices called xenon flash lamps, which are used in photographic flashes and stroboscopic lamps; to excite the active medium in...

Vendredi 30 mai 2014

Chlorine is a chemical element with symbol Cl and atomic number 17. Chlorine is in the halogen group and is the second lightest halogen after fluorine. The element is a yellow-green gas under standard conditions, where it forms diatomic molecules. It has the highest electron affinity...

Vendredi 30 mai 2014

Propene, also known as propylene or methylethylene, is an unsaturated organic compound having the chemical formula C3H6. It has one double bond, and is the second simplest member of the alkene class of hydrocarbons.Propene is the second most important starting product in the petrochemical...