can we call one molecule of an oxygen(O2) an element?
359329
In truth, it is not an element. However, oxygen occurs in nature as O2. Therefore, we call it elemental oxygen.
74671
a two attom molecule. molecule=more than one attom
662214
the chemical changes between oxygen and hydrogen that create of one molecule of water.
116456
carbon- obviously carbon\nmonoxide- mono-one oxide-oxygen
590815
"Water has the chemical formula H2O, meaning that one molecule of water is composed of two hydrogen atoms and one oxygen atom."\n\nSource: http://en.wikipedia.org/wiki/Water\n\nWater is just another combination of basic elements, why they formed, and in the quantities they did is open to speculation.
646072
Di-hydrogen oxide would be the chemical name of water. H2O is the chemical formula. The are many ways a person could draw a physical model of it. Now there are other chemicals and ions that only contain hydrogen and oxygen. There is Hydrogen peroxide as an example of a chemical. There are hydroxide ions HO- and oxonium ions H3O+. There is a limit to how many chemicals can be derived by both Hydrogen and oxygen because Hydrogen can only bond to one atom at a time, and Oxygen can only bond to two atoms at a time. Although that would in theory allow an oxygen chain that could have a hydrogen atom on each end with the exception of hydrogen peroxide H2O2, this does not occur. Species with only oxygen. An oxygen atom O it seldom ever found in nature for electronic reasons. An oxygen diatomic molecule O2 is the most abundant form of pure oxygen in the atmosphere. Ozone O3 is not particularly stable it is usually made by free radical chain reaction, but then tries to react with whatever it can. H atomic Hydrogen seldom ever found in nature. Diatomic hydrogen molecule H2 is the most abundant species in the universe, but somewhat rare on earth. Hydrogen H+ ion can exist, but in water it is the short hand for writing H3O+ which I referred to earlier.
121280
Well clearly it belongs in the Gas element but i dont really understand what you mean by the question though.  :&#92;
860447
There's no separation of molecular oxygen to atomic oxygen as previously written:\nsimply \nOx: Sr -> Sr2+ + 2e \nRed: O2 + 4e -> 2 O2-
754853
So far none of the answers are completely correct.\n\nOxygen is an element - atomic symbol = O\n\nOxygen is normally found as a diatomic molecule O2 - meaning two oxygen atoms bound together\n\nO3 is ozone - a molecule that contains 3 oxygen atoms. It is highly reactive.  In the upper atmosphere, where it is naturally produced, it absorbs ultraviolet radiation, protecting life on earth from severe UV damage.  It is also a component of air pollution that is very hard on the lungs, can make your eyes burn, etc.\n\nLightening also produces ozone.  This is what causes the slightly sweet smell that you detect following a lightening storm.
960383
The tip I give to my student is to always FINISH with the element that has only one type of atom, like O2 or H2.  This way, when you balance it, you won't disturb any work done previously.
751375
Yeah, that's right.\n\nThere are 2 atoms of O in each molecule of O2, so 1 mole of O2 molecules contains 2 moles of O atoms.
88222
Water. Water contains two hydrogens and one oxygen. It's technical name should be dihydrogen monoxide, but we knew about water before chemistry was officially developed.
529029
http://www.webelements.com/webelements/elements/text/O/key.html\nhttp://www.chemicalelements.com/elements/o.html\nhttp://en.wikipedia.org/wiki/Oxygen
135479
Six molucules of water + six molecules of carbondioxide to give you one molecule of sugar and six molecules of oxygen ie: "6H2O + 6CO2 ----------> C6H12O6+ 6O2" This happens only in the presence of a catalyst which is sun light.
253918
Molecules are made of atoms
826844
H\n |    \nC=O:  (You need 2 lone pairs on Oxygen)\n |   \nH\n\nIt doesnt get much better than that :)
902000
They usually are not defined that way, but you can have:\n\n1. Redox in base solutions\n2. Redox in acid solutions\n3. Single species where the same species (such as I2) is bothe the oxidizing and reducing agent.\n4. Non water based\n5. Molten (no solvent at all) other than the components\n6.spontaneous/non-spontaneous