If H2O is water, then what would H1O be?
959724
And H2O2 is hydrogen peroxide (that stuff you put on cuts and it fizzes)....cuz I can almost see that one coming....and H2O3 is dihydrogen trioxide a powerful oxidant produced by antibodies in reaction to invading bacteria in the body.....
744509
Each molecule of hydrogen contains 2 hydrogen atoms (H2) and each molecule of water contains 2 hydrogen atoms.  So a mole of water contains a mole of hydrogen.  For the second part of your question, there are 6.02e23 molecules of H2O in a mole of H2O.  Each H2O molecule contains 3 atoms, so a mole of H2O has 3*6.02e23 = 18.06e23 atoms.\n\nAdditional comment:  When one says "a mole of hydrogen," what is normally meant is a mole of hydrogen gas, which is H2, not a mole of hydrogen atoms.
71034
Not sure what you mean. \n\nHowever water is a compound made up from 2 atoms of hydrogen(H) and one atom of oxygen (O), hence H20. You cannot have water without either element, so yes oxygen is needed to make water.
541170
New in Chemistry?????\n\nThere is no conversion of H2O in HHO.\nIt is simply way of writing a formula. HHO is wrong, it is HOH.\n\nActually Oxygen has two separate bonds with two different atoms of Hydrogen so it is written as H-O-H.\n\nWhen H-O-H is broken it usually converts to H+ and OH-
313595
Water... its got a pH=7
720749
water is water everywhere in the chemical sense of good ol' H2O (imagine it was a small 2).  Water exists in the form of ice in various places:  in comets, ice caps of Mars, and some of the rings around Saturn are made of ice particles.  Jupiter's moon Europa is covered in water ice sheets like the arctic ocean.\nTechnically the only "pure" water is distilled water... all other naturally occurring water on earth has some impurities, even rain.
412868
Water isn't important for everything. It's only important for living things such as plants, human beings, and small bacteria. Water is the one and only thing that could give you energy and rehydrate you completely. Water as the last person said has 2 hydrogen atoms and 1 oxygen atom. Those gases are helpful for your body to function.
426778
Water is h20 - 2 hydrogen and 1 oxygen. Heavy water means that the hydrogen isnt regular hydrogen with 1 proton and no neutrons, but it has 1 neutron and 1 proton. The Nazis tried to make a bomb during wwii which would have been the first hydrogen bomb (h-bomb), but they coulndt do it. The usa made the first a-bomb which used uranium, and later they made an h-bomb by putting something similar to heavy water inside of an a-bomb\n\ni agree, check http://en.wikipedia.org/wiki/Heavy_water
755325
The first thing we want to account for is that there are 6.02 x 10^23 molecules of H2O in one mole of H2O.  This is Avagadro's number, and it applies for the number of molecules in a mole, the number of atoms in a mole, etc.  So we want to see the problem up as follows:\n\nWe will start with our given quantity of molecules (2.48 x 10^26 molecules of H2O) and multiply this number by the ratio 1 mole of H2O/6.02 x 10^23 molecules H2O.  Essentially we are dividing 2.48 x 10^26 by 6.02 x 10^23.  The answer will be left with moles of H2O because the molecules of H2O will cancel each other, and we will be left with an answer.  \n\nFor a frame of referance, this answer is 4.12 x 10^2, or is it's not put into scientific notation, it is 412. molecules of H2O.
631873
i dont know what is too difficult inthe question to understand it!!\nok to find out the formula of a binary compound whatu need to know essentially is the valency exhibited by an element in that compound\nlet us take water: constituted by hydrogen and oxygen\nvalency exhibited by hydrogen is always 1, and that exhibited by oxygen is 2\nthis implies that two atoms of hydrogen combine with one atom of oxygen and hence the formula of water is H2O
903700
That is definitely not correct!!\n\nFor example water (H20) is very very different from the two gases that make it namely hydrogen (H2) and oxygen (O2)
322532
No, water (H2O) and Gasoline [mostly Octane] (C8H18) are quite different on a molecular level,\nFor one, water has no carbon, and Octane has no Oxygen.
643686
It would make water (H2O).
632188
Since a glass of milk contains water in it, i would say water.
942952
Water itself is a polar molecule, with a partial negative charge on the oxygen atom and a partial positive on the hydrogens. It allows water to hydrogen bond with other molecules.
646959
2H2 + O2 ---- 2 H2O\n\nYou can easily obtain water around the house.
325448
for one molecule of H2O, there will be one molecule of H2 and one molecule of O.\n\nfor one molecule of H2O, there will be two atoms of H and one atom of O.