When do we use it

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Stacey Phan 2I
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When do we use it

Postby Stacey Phan 2I » Thu Nov 12, 2020 8:22 am

When do we make a coordinate covalent bond between two atoms?

Anirudh Mahadev 1G
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Re: When do we use it

Postby Anirudh Mahadev 1G » Thu Nov 12, 2020 8:26 am

If you're drawing a Lewis Structure and a molecule doesn't have enough electrons to make a complete octet but its still relatively stable, like BF3, that would be a great candidate for a coordinate covalent bond. If a molecule with a free lone pair is there, like F- or ammonia, NH3, that molecule would donate both of the electrons needed for the coordinate covalent bond to form.

Ashlen Bullock 1H
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Re: When do we use it

Postby Ashlen Bullock 1H » Thu Nov 12, 2020 9:04 am

Basically, a coordinate covalent bond is not a typical bond. Instead of atoms each sharing two electrons, one of the atoms donates two electrons to share. I think this type of bond can be seen with an element that needs two more electrons to complete an octet. An example of this would be BF3 to BF4-

Eunice_Castro_1G
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Re: When do we use it

Postby Eunice_Castro_1G » Thu Nov 12, 2020 11:02 am

Coordinate covalent bond is when one atom shares two electrons (the donor) and the accepting atom just takes them. This often occurs when the acceptor does not get the 8 electrons (octet guideline) from the bonds with the other atoms.

Tanner Bartyczak 1K
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Re: When do we use it

Postby Tanner Bartyczak 1K » Sat Nov 14, 2020 11:40 pm

I was also wondering when coordinate covalent bonds were used. Thanks for the explanations.

Gian Boco 2G
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Re: When do we use it

Postby Gian Boco 2G » Sun Nov 15, 2020 4:43 am

When only one of the atoms in a covalent bond donates both electrons that are shared, that bond is considered a coordinate covalent bond.

Juliet Carr 1F
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Re: When do we use it

Postby Juliet Carr 1F » Sun Nov 15, 2020 9:52 am

Coordinate covalent bonds are also common between lewis acids and bases. Since lewis acids are electron pair acceptors and lewis bases are electron pair donors, the lewis base will donate both of its electrons to form a coordinate covalent bond with the lewis acid.

Gicelle Rubin 1E
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Re: When do we use it

Postby Gicelle Rubin 1E » Sun Nov 15, 2020 1:07 pm

I also had the same question. Thank you for asking!

t_rasul2I
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Re: When do we use it

Postby t_rasul2I » Sun Nov 15, 2020 6:50 pm

coordinate covalent bonds are when a lone element like F comes and donates both of their electrons to create covalent bond. Basically, the electrons are not shared and one of the compounds donates their two electrons to create a bond. This happens where there are partial positive and negative charges.

Isabella Cortes 2H
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Joined: Wed Sep 30, 2020 9:37 pm

Re: When do we use it

Postby Isabella Cortes 2H » Sun Nov 15, 2020 6:56 pm

we make covalent bonds between atoms when one of the atoms donates the 2 electrons to form the bond.


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