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Because the hydrogen molecules are further apart than the oxygen so move quicker.
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∙ 11y ago
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Is a molecule of oxygen larger than a molecule of hydrogen?
A single oxygen atom is smaller than a molecule.
Hydrogen bonds are weaker than the bond that holds hydrogen to oxygen in a water molecule?
True
When an oxygen molecule attaches to two hydrogen atoms which one is positive?
Under normal conditions, an oxygen molecule, which contains two oxygen atoms, does not attach to two hydrogen atoms. In a water molecule, which consists of two hydrogen atoms and one oxygen atom, both covalent bonds between oxygen and hydrogen are polar, with the oxygen end of the bond more often negative than either of the hydrogen ends.
Why does the oxygen in a water molecule have a negative charge?
Oxygen attracts electrons more strongly than hydrogen does.
Is hydrogen more than oxygen in universe?
Yes, there is more Hydrogen than anything else in the universe. Most molecules which contain Oxygen also contain Hydrogen, and there is usually more Hydrogen than Oxygen within the molecule already, for example Water, H2O (There are exceptions, such as Oxygen, O2 and Ozone, O3)
What is the term for a molecule that has two times the amount of hydrogen than that of the oxygen in the molecule?
Water is one such molecule, being H2O. The molecules of sucrose and glucose also have the same two to one ratio of hydrogen to oxygen. Sucrose is C12H22O11, and glucose is C6H12O6.
What causes the water molecule to have a negative charge?
The water molecule does not have a negative charge. The oxygen end of the molecule has a partial negative charge and the hydrogen end has a partial positive charge. This is because the oxygen atom is more electronegative than the hydrogen atoms, and tends to hold the shared electrons more tightly than the hydrogen atoms.
Why is a polar molecule?
A molecule is polar because it has an uneven distribution of electrons within it. For example the oxygen in H2O has a higher electronegativity than the hydrogen. This means that the oxygen will possess more of the electron, and therefore more of the negative charge than the hydrogen, leading to a polar molecule.
Why is the bond between hydrogen and oxygen in a water molecule is more polar than the bond between hydrogen and nitrogen in a ammonia molecule?
Oxygen has a higher electronegativity than nitrogen does, so when sharing electrons with hydrogen, the sharing is more uneven in the case of oxygen than it is with nitrogen. Oxygen, in other words, will attract electrons more strongly than nitrogen does and therefore will wind up with a more negative charge (hydrogen, which supplies the extra electrons to the oxygen, has a correspondingly higher positive charge).
Can a third hydrogen join a water molecule?
No. A third hydrogen atom can not join a water molecule. However, it can partially join a water molecule through a process called hydrogen bonding. So the third hydrogen is more attached to its own oxygen atom than it is attached to the other oxygen atom although it is attached to both.
What is polarity in a water molecule?
The oxygen and hydrogen in water are bonded by a covalent bond. This means that the two lone lone electrons of hydrogen are shared with oxygen. Oxygen has a tendency to "hoard" electrons. So when it bonds with the hydrogen the two shared electrons are closer to the oxygen than to the hydrogen. As a result one side of water(the one with the oxygen) becomes slightly negative due to the fact that the oxygen has the two electrons closer to it. The side of the hydrogen becomes slightly positive as a result. When two or more molecules of water are placed together the slightly negatively charged oxygen from one molecule attracts the slightly positively charged hydrogen from another molecule forming a weak hydrogen bond. this hydrogen bond is formed as a result of the polarity of water.
What kind of charge is found on the oxygen atom of polar water molecule?
In a water molecule, the oxygen atom shares electrons with two hydrogen atoms, but it does not share equally since it has a stronger attraction for electrons than the hydrogen atom does, and the electrons therefore have a greater probability of being close to the oxygen nucleus than to the hydrogen nuclei. As a result, the oxygen atom has a negative charge. The hydrogen atoms are positively charged.
