double bonds

[Tylina Guo 1K]

how do we differentiate which bond is the sigma and which is the pi bond in a double bond?

[Minoo Bastani 2J]

It is arbitrary, meaning that either one of the two could be the sigma bond and the other is then the pi bond. It is your choice to decide which is which, but you should clearly distinguish between the two when necessary.

[Junyong Wu]

The first bond to be broken is the pi bond.

[Nithya Narapa Reddy]

A pi bond is the first bond that's broken and the other bond is the sigma bond.

[Lizzy Bulla 3K]

It doesn't necessarily matter. Either can be sigma or pi. Drawing them, just know one is each. You don't need to know which is sigma or pi.

[Madeline_Miller]

Pi Bond = First bond that is broken
Sigma Bond = Other bond

[805401611]

The best way to determine this is by remembering that the sigma bond is always the first bond that is formed between two atoms and the pi bonds is always the second. Therefore, when a double bond is broken, the first bond that is broken between the two will be the pi bond. Hope that helps!

[Andrea_Perez_2F]

A quick way to think about it is when you see a single bond or any type of bond really, see it as there is a sigma bond there. When you see a double or triple bond this means that there are pi bonds present. Single bonds have one sigma bond. double bonds have a sigma and pi bond. triple bonds have one sigma bond and two pi bonds.

[Shaleena 3C]

The pi bond will be the first to be broken !

[Omeed Kalan]

Pi will be the first bond broken.

[akemiwebster2G]

Always remember that the sigma bond is the first link formed between two atoms, and the pi bond is the second. As a result, when a double bond is broken, the pi bond is the first to be broken between the two!

[Sofia Potter 1I]

The pi bond is the first bond broken, but it shouldn't matter too much!

[Ashrita Singh 2F]

The first bond made is the sigma bond, and the second bond will be a pi bond.

[Aaron Kim 1J]

The pi bond is the first to be broken

[Polo Morales 3C]

The sigma bond will have been the first one formed and will involve end-to-end bonding of orbitals. The pi bonds will form subsequently, and are side-by-side bonds that do not allow for rotation. Hope this helps!

[Alice Weber 3I]

Hi, the first bond to be broken is the pi bond.

[Tara Cumiskey 3K]

The pi bond is the first one broken.

[Chelsea Greene 1L]

Both are present, and I believe we just have to understand that conceptually and not be able to identify which is which.

[Chris Van 2J]

The first bond broken is the pi bond. Also in hybridization, the set of electrons in the p orbital can be characterized as the pi bond!

[elletruchan2I]

Hi Tiyana!
We don't know which bond is the sigma and which is the pi bond in a double bond, just that there is one of each.

[Brooklyn Burgess 3L]

Why if there are 6 angles, there are 12 sigma bonds?

[Albert 1I]

In a double bond there is one sigma bond and one pi bond. The sigma bond is the direct sharing of electrons in the molecule, while the pi bond is delocalized.

[305597516]

The first bond is essentially always a sigma bond, and the second one that forms (if a double bond is occurring) is the pi bond. It is probably more helpful just to know that a double bond possesses one sigma and one pi bond, as I feel like when you draw them out you wouldn't really be able to distinguish them (unless in like an ochem kind of way).

[Nicola Higgins 14B]

All the first bonds are sigma, and double bonds if there are any are pi. Pi are rigid and do not allow for rotation of the molecule, unlike sigma bonds!

[cnyland]

It doesn't matter! Just one is sigma and one is pi

[erud]

I don't believe that there is a specific bond in a lewis structure or other diagram that you can differentiate , but I usually make sure to indicate the sigma bonds first.

[205282258]

the pi bond is the first one to be broken, the sigma is the other bond