What are some facts.....Help it's due tomorrow?

Question

See I need some answers so I need you guys help.What are some different facts on oxygen and I do not need the chemical or physical properties I need other facts...please help me......

Answer 1

Oxygen is a Group 16 element. While about one fifth of the atmosphere is oxygen gas, the atmosphere of Mars contains only about 0.15% oxygen. Oxygen is the third most abundant element found in the sun, and it plays a part in the carbon-nitrogen cycle, one process responsible for stellar energy production. Oxygen in excited states is responsible for the bright red and yellow-green colours of the aurora. About two thirds of the human body, and nine tenths of water, is oxygen. The gas is colourless, odourless, and tasteless. Liquid and solid oxygen are pale blue and strongly paramagnetic (contains unpaired electrons).

Ozone (O3) is another allotrope of oxygen. It is formed from electrical discharges or ultraviolet light acting on O2. It is an important component of the atmosphere (in total amounting to the equivalent of a layer about 3 mm thick at ordinary pressures and temperatures) which is vital in preventing harmful ultraviolet rays of the sun from reaching the earth's surface. Aerosols in the atmosphere have a detrimental effect on the ozone layer. Large holes in the ozone layer are forming over the polar regions and these are increasing in size annually. Paradoxically, ozone is toxic! Undiluted ozone is bluish in colour. Liquid ozone is bluish-black, and solid ozone is violet-black.

Oxygen is very reactive and oxides of most elements are known. It is essential for respiration of all plants and animals and for most types of combustion.


The following uses for oxygen are gathered from a number of sources as well as from anecdotal comments.

oxy-acetylene welding
frequently used to aid respiration of patients in hospitals
used in making methanol and ethene oxide
rocket fuel oxidant
steel manufacture
ozone (O3) in the atmosphere is protection against the sun's ultraviolet rays
breathing


Historical information
Discovered by: Joseph Priestley, Carl Scheele
Discovered at: England, Sweden
Discovered when: 1774
Origin of name: From the Greek words "oxy genes" meaning "acid" (sharp) and "forming" (acid former)

Notes
Leonardo da Vinci suggested that air consists of at least two different gases. Before then, air was felt to be an element in its own right. He was also aware that one of these gases supported both flames and life. Oxygen was prepared by several workers before 1772 but these workers did not recognise it as an element. Joseph Priestley is generally credited with its discovery (who made oxygen by heating lead or mercury oxides), but Carl Wilhelm Scheele also reported it independently.

Answer 2

Oxygen is a clear colorless odorless gas. Liquid oxygen(LOX) is used as rocket fuel. Oxygen is about 20% of the atmosphere. It is very reactive , combining with most elements on the periodic table. Atomic number 8, 8 protons, 8 neutrons, 8 electrons. Atomic mass 16. Diatomic molecule, O2.

Answer 3

Fireflies and other bioluminescent organisms need oxygen in order to produce light...

Answer 4

- Necessary for aerobic respiration.

-