Science Assignment
O3
Ozone
Covalent bond
Write-up:
Disadvantages:
Triatomic molecule, made out of three oxygen atoms. Three harmless oxygen atoms that bond to become a harmful compound, ozone.
Ozone in the lower atmosphere is an air pollutant with harmful effects on the respiratory systems of animals and will burn sensitive plants.
Dangerous to allow this liquid to warm to its boiling point, because both concentrated gaseous ozone and liquid ozone can detonate.
Produces headaches, burning eyes, and irritation to the respiratory passages.
Even low concentrations of ozone in air are very destructive to organic materials such as latex, plastics, and animal lung tissue
There is a great deal of evidence to show that ozone, created by high concentrations of pollution and daylight UV rays at the Earth's surface, can harm lung function and irritate the respiratory system.
Exposure to ozone and the pollutants that produce it is linked to premature death, asthma, bronchitis, heart attack, and other cardiopulmonary problems.
Advantages:
Ozone in the upper atmosphere is beneficial, preventing potentially damaging ultraviolet light from reaching the Earth's surface
Many industrial and consumer uses.
How it is formed?
Ozone is formed when monatomic oxygen encounters an oxygen molecule, or when N2O5 decays. Monatomic oxygen is formed when UV light of 215nm or shorter, or an energetic electron, dissociates an oxygen molecule.
These oxygen atoms are called free radicals. ie they have at least one unpaired electron. Because of this, free radicals are very reactive. An oxygen atom will then react with an O2 (oxygen) molecule to form ozone
How it is formed?
Ozone is formed when monatomic oxygen encounters an oxygen molecule, or when N2O5 decays. Monatomic oxygen is formed when UV light of 215nm or shorter, or an energetic electron, dissociates an oxygen molecule.
These oxygen atoms are called free radicals. ie they have at least one unpaired electron. Because of this, free radicals are very reactive. An oxygen atom will then react with an O2 (oxygen) molecule to form ozone
A video on ozone:
Oxygen:
Oxygen is a highly reactive nonmetallic 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.
Oxygen is a highly reactive nonmetallic 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.
Acknowledgements:
http://en.wikipedia.org/wiki/Oxygen
http://wiki.answers.com/Q/How_is_ozone_formed
http://www.epa.gov/airnow/ozone/o3.html
http://en.wikipedia.org/wiki/Ozone
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