A hydrogen gas molecule consists of two hydrogen atoms. A hydrogen nucleus has a positive charge of one unit and must be balanced by one electron to be electrical neutral - but since electrons don't like to be alone, the atom seeks another hydrogen atom with which the two electrons can orbit the two nuclei together - we say they form a molecule. This molecule is electrically neutral, so the molecules don't interact with each other but can fly around freely. Therefore, hydrogen is a gas. Oxygen is a gas for similar reasons.
Two hydrogen atoms can join with one oxygen atom to form a boomerang-shaped molecule with oxygen in the middle. Since the electron orbit in hydrogen is smaller than in oxygen, the electrons that orbit both the oxygen nucleus and one of the hydrogen nuclei is more often to be found near the oxygen atom, giving the molecule a negative charge near the "corner" of the boomerang where the oxygen is and a positive charge centered opposite the "corner", i.e. between the two hydrogen nuclei.
Those electrical charges make water molecules attract each other. The tend to form long, fragile chains that are too heavy to fly around at low temperatures. Therefore, water is a liquid.
It's a unique property for such a light molecule as water to be a liquid with such a high boiling point. CO2 and buthane, for example, are heavier per molecule than water but because they have no charged ends they are gases. Methanol is another example of a light-molecule liquid. But a methanol molecule is less charged than water is, so it will boil at a lower temperature than does water.
2006-08-11 01:10:36
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answer #1
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answered by helene_thygesen 4
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How Is Water Formed
2016-10-06 01:17:16
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answer #2
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answered by Anonymous
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It's like attraction between molecules of hydrogen and oxygen atoms that come close together and form a different atom for water to appear..
2006-08-11 01:06:53
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answer #3
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answered by Elli 2
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because it isn't a mixture of 2 gases (hydrogen and oxygen). Water is different substance (formed in chemical reaction).
2006-08-11 01:56:34
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answer #4
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answered by hi 2
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The bonding of hydrogen and oxygen happens on a molecular level. If you were to put pure hydrogen and oxygen together it would explode.
2006-08-11 01:01:44
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answer #5
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answered by Jon T 3
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It depends on the temperature.
Sulphur is a solid, but if you combine it with oxygen you get a gas. Nitrogen is a gas, if you combine it with oxygen you get a gas.
Mercury is a liquid, combine it with oxygen you get a solid.
Iron is a solid, combine it with oxygen you get a solid.
Burn hydrogen with oxygen you get water vapour which condenses at room temperature to liquid. If you combine hydrogen with oxygen in the antarctic you'll get a solid, if you do it in a sauna you'll get vapour or steam.
Go figure?!
2006-08-11 01:16:23
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answer #6
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answered by Mesper 3
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By chemical reaction between oxygen and hydrogen
2006-08-11 01:28:55
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answer #7
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answered by Vatsal S 2
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water is h2o. which means 2 hydrogen atoms bonded to one oxygen atom. when several molecules of h2o join together by means of hydrogen bonding, these bonds cause the change of state from gas to liquid hence water is in liquid form.
2006-08-11 01:06:36
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answer #8
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answered by Masquerade 2
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both are gasses but what is formula of water its H2O ie hydrogen- quantity is 2 and oxygen - quantity is 1 on cooling state it forms in the form of liquid.
2006-08-11 00:59:00
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answer #9
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answered by Anonymous
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the two atoms of hydrogen combine with one atom of oxygen and produce water the bonds are related by means of loose hydrogen bonds
2006-08-11 00:59:06
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answer #10
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answered by gagan d 2
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