lewis base or acid

[Tiffanny_Carranza_2D]

can anyone explain how do you know when a species is an acid or a base?

thank you

[Ashlen Bullock 1H]

A species is a lewis acid when it accepts an electron and a species is a lewis base when it donates an electron.

[Emma_Barrall_3J]

Lewis acids are electron acceptors and lewis bases are electron donors.

[Julianna Shimabukuro 1D]

Lewis acids can accept electrons, which tends to be if they do not have a complete octet or are exceptions where they can have expanded octets. Lewis bases donate electrons, so they have lone pair electrons.

[BaileyB1F]

An example to help understand is FeCl3 + Cl-. The Cl- is a base because it is going to donate its electron to FeCl3, making FeCl3 the base because it accepts the electron.

[Simer_Shera_2D]

Acids accept electrons and bases donate!

[Izamary Marquez 2H]

Would this make cations and anions more likely to be acids or donors? Is there a correlation?

[Julianna_flores3E]

Lewis acids accept electrons and lewis bases give them away. I think that there would be a correlation between cations and anions since they have + a d - charges.

[Melissa Solis 1H]

Would this make cations and anions more likely to be acids or donors? Is there a correlation?

I think that anions would be more likely to be the lewis acids while the cations would be correlated with the lewis bases since they are getting rid/donating their electrons. I'm not sure if the prof. specifically said there was a correlation between them but it makes sense.

[Tanner Bartyczak 1K]

I believe there is a correlation. According to google, "All anions are Lewis bases, but not all Lewis bases are anions."

[SelenaDahabreh1D]

Lewis acids accept electrons, whereas Lewis bases donate electrons. It helps to draw out the Lewis structures to determine whether a molecule is a Lewis acid or base.

[vbarian27]

acids accept bases donate. I remember it by thinking a for acid goes with a for accept and the b and the d for base and donate are symmetrical

[Katie Nye 2F]

Lewis acid accept electrons while Lewis bases give the electrons.

[Gian Boco 2G]

Would this make cations and anions more likely to be acids or donors? Is there a correlation?

Cations donate electrons, resulting in their positive charge, making them Lewis bases. Anions accept electrons and then become negatively charged, making them Lewis acids.

[Armen_Isayan_2L]

Hello! A Lewis acid is the substance which accepts electrons, an electron-pair acceptor. Whereas the Lewis base donates electrons, an electron-pair donor.

[Astha Patel 2J]

A lewis acid accpets electrons and therefore is usually a cation, a molecule where the central atom is electron deficient, or a molecule with polar double bonds.
A lewis base donates the electrons and therefore is usually an anion, a molecule where atoms have excess electrons or a molecule with lone-pairs of electrons.