Hydrogen Bonds

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Bronson Mathos 1H
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Hydrogen Bonds

Postby Bronson Mathos 1H » Sun Nov 15, 2020 6:11 pm

In determining hydrogen bonds, in addition to bonding with N, O, and F, is a hydrogen atom bonding with another hydrogen atom considered a hydrogen bond?

Gina Spagarino 3G
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Re: Hydrogen Bonds

Postby Gina Spagarino 3G » Sun Nov 15, 2020 6:23 pm

No, the hydrogen bond is between the N/O/F that the hydrogen must be bonded to and another N/O/F that has a pair of electrons to form the bond. The H will always have a slight positive charge in this case, so the hydrogen bonds will always include a H and a nitrogen, oxygen, or fluorine atom.

Hannah Lechtzin 1K
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Re: Hydrogen Bonds

Postby Hannah Lechtzin 1K » Sun Nov 15, 2020 6:27 pm

No. This is because in order for a hydrogen bond to take place the hydrogen atoms in a molecule need to exhibit a slightly positive charge, so they can be attracted to the slightly negative N,O, or F. This means that the hydrogen atoms will repel each other and therefore cannot hydrogen bond.

Gwendolyn Hill 2F
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Re: Hydrogen Bonds

Postby Gwendolyn Hill 2F » Sun Nov 15, 2020 6:34 pm

No; Hydrogen bonding occurs because hydrogen is "electropositive", or only slightly electronegative. N, O, and F are highly electronegative, and thus attract hydrogen. Hydrogen doesn't have enough strength to attract other hydrogens' electrons if they are already separately bonded

Lauren Sarigumba 1K
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Re: Hydrogen Bonds

Postby Lauren Sarigumba 1K » Sun Nov 15, 2020 7:07 pm

An H-atom must be attracted to N, O, or F in order to call it a hydrogen bond. If an H-atom of a molecule is attracted to an H-atom of another molecule, then it is not considered an H-bond. In fact, hydrogens generally are not attracted to each other since usually H atoms are both partially positive within their molecules, and therefore two partial positive molecules would not be attracted to each other.

Rose_Malki_3G
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Re: Hydrogen Bonds

Postby Rose_Malki_3G » Sun Nov 15, 2020 7:25 pm

No a hydrogen bonding with another hydrogen is not considered hydrogen bonding. This type of interaction is also not favorable since hydrogen would be delta positive so two delta positive atoms would not be attracted to one another.

Melanie Krahn 1C
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Re: Hydrogen Bonds

Postby Melanie Krahn 1C » Sun Nov 15, 2020 7:26 pm

So to clarify, in conclusion, a hydrogen bond only exist between H and an N, O, or F molecule? H bonds are polar correct? Because the H is attracted to a more electronegative atom?

Mari Williams 1K
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Re: Hydrogen Bonds

Postby Mari Williams 1K » Sun Nov 15, 2020 8:47 pm

The H in a hydrogen bond must be bonded to a very electronegative atom(like O) to make sure it has a slight positive charge

Megan Lu 3D
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Re: Hydrogen Bonds

Postby Megan Lu 3D » Sun Nov 15, 2020 8:57 pm

Melanie Krahn 1C wrote:So to clarify, in conclusion, a hydrogen bond only exist between H and an N, O, or F molecule? H bonds are polar correct? Because the H is attracted to a more electronegative atom?


Hi! I believe that hydrogen bonds exist between a hydrogen atom (covalently bonded specifically to F/O/N within the molecule) and another molecule's electromagnetic atom that has an available lone pair. Thus, I believe we could classify the covalent bond that the hydrogen atom experiences intramolecularly as “polar,” but I don’t think we classify the hydrogen bond itself as a polar bond, because it is an intermolecular force of attraction, not a covalent bond. Hope this makes sense!

nayha a 1E
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Re: Hydrogen Bonds

Postby nayha a 1E » Sun Nov 15, 2020 9:09 pm

Hi, unfortunately, that would not be a hydrogen bond. The H would have to be bonded to a highly electronegative atom like N, O, and F.

Lauren Strickland 1B
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Re: Hydrogen Bonds

Postby Lauren Strickland 1B » Sun Nov 15, 2020 9:26 pm

No a hydrogen bond would take place between a hydrogen atom and an atom such as Oxygen, which is highly electronegative.

Griffin G
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Re: Hydrogen Bonds

Postby Griffin G » Sun Nov 15, 2020 10:24 pm

No. H-H, is not a hydrogen bond. It's just a normal bond between two hydrogens.

Michelle Magana 2B
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Re: Hydrogen Bonds

Postby Michelle Magana 2B » Sun Nov 15, 2020 10:29 pm

The h-h bond will not be considered a hydrogen bond. A hydrogen bond will be attracted to electronegative elements such as F,O, and N

Erika Sosa-Cruz 1J
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Re: Hydrogen Bonds

Postby Erika Sosa-Cruz 1J » Sun Nov 15, 2020 11:04 pm

Hydrogen bonds are attractive to D,o, and N therefore h-h bond will not a hydrogen bond.

Binyu You
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Re: Hydrogen Bonds

Postby Binyu You » Sun Nov 29, 2020 10:11 am

No. This is because a hydrogen bond only forms between hydrogen and the N/O/F because H need to have a slight positive charge and the other atom will ave slightly negative charge. If two hydrogen bond together, then no electronegativity difference will be shown, thus showing no slight charge and no hydrogen bond.

Chinmayi Mutyala 3H
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Re: Hydrogen Bonds

Postby Chinmayi Mutyala 3H » Sun Nov 29, 2020 8:05 pm

No, hydrogen bonds require hydrogen bonding with an electronegative atom.

Gian Boco 2G
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Re: Hydrogen Bonds

Postby Gian Boco 2G » Sun Nov 29, 2020 11:45 pm

Nope because hydrogen bonding denotes an intermolecular force


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