what is the chemical formulae of water?

Answer 1

Water's chemical formula may always be H2O, and not different on shorter timescales, according to a new paper. In earlier experiments, a research group reported that neutrons and electrons interacting with room-temperature water molecules for very brief times (0.1-1 femtoseconds) saw a ratio of hydrogen to oxygen of roughly 1.5 to 1, suggesting a chemical formula of H1.5O for water at short timescales (Update 648).

According to the data analysis of those researchers, incoming neutrons scattered from at least 25% fewer hydrogen nuclei (protons) than expected. They proposed that quantum entanglement between protons (hydrogen nuclei) on a sub-femtosecond timescale was causing this anomalous scattering. This result stimulated a flurry of theoretical and experimental activity, including a new experiment at Rensselaer Polytechnic Institute in Upstate New York that now disputes these earlier results.

The experimenters, coming from Ben Gurion University and RPI (Raymond Moreh, [e-mail]), use higher-energy neutrons which interact with pure liquid water, pure D2O, and mixtures of the two liquids, on shorter timescales (0.001-0.01 femtoseconds) than in the earlier experiments. (Theorists had predicted that the shorter timescales would lead to an even more pronounced scattering anomaly, since quantum decoherence would have less time to spoil the proposed entanglement between protons.)

However, the Ben Gurion-RPI team did not detect an anomalous dropoff in n-p scattering. They conclude that no entanglement takes hold and water is accurately described as H2O, after all, at these shorter timescales. They cite several advantages of their experiment, including the following: they looked at a single, simpler scattering signal arising from the three nuclei of the water and D2O molecules (as opposed to the separate neutron scattering signals for oxygen, hydrogen, and deuterium in the earlier experiments); and their data did not require complicated processing, leading to a much simpler data analysis than was necessary in the previous work.

Researchers from the earlier experiments contend that the new experiment does not probe the timescales that they originally explored; the new team counters that their data does address the original team's timescales. In addition, Moreh and colleagues argue that one would have to shake many well established notions in physics to explain the suggested scattering anomaly..

Answer 2

H 2 O

Answer 3

When Hydrogen ion ( H+) react with Oxygen ion (O--) the to balance extra 2 electron of Oxygen ion 2 electron defficiency is required which mean 2 Hydrogen ions are required, Hence the chemical formula for water became
H2O.

Answer 4

u've asked FORMULAE, but there is one n only one formula for water n that is H2O. 2 is subscript. In a water molecule two hydrogens are associated with one oxygen molecule and hence H2O.
H - o - H is also true, as in a water molecule there exists hydrogen bond.

Answer 5

chemical formula of water is H2O.

Answer 6

This one can easily imagine a child understanding such! My daughter thought than an appendix was an "independence" and she was worried that I might have to have mine removed! Once, when I told her that a young woman we know from a local restaurant probably had many young men chasing her, my daughter said she hoped the young lady in question was a fast runner (and I think her daddy hopes so too!) Jazak'Allah khair for the laugh. Ma'a salaam.

Answer 7

H2O the 2 goes as subscript

Answer 8

H2O is the chemical formula of water. it is two atoms of hydrogen and one atom of oxygen.

Answer 9

for the water it's H2O.... there also different types of them viz heavy water where there is a extra neutron in the hydrogen and the formula is D2O. It's called deuterium oxide..

Answer 10

h2o which means 2 hydrogen and 1 oxygen molecule