Neither, it's a salt.
lewis acid
yes
The Lewis base donates one or more pairs of electrons to the Lewis acid in order to form a compound with one or more dative bonds.
Depending on the type of acid/base (Arrhenius, Bronsted, Lewis), the acid donates protons and a base doesn't but accepts protons, or the base donates OH- and the acid doesn't, or the acid accepts a pair of electrons and the base donates a pair of electrons. They are just different, that's why.
A Lewis acid accepts an electron pair.
Yes - it is a "Lewis salt" formed from a Lewis acid and a Lewis base. Most chemists would not call it a salt which is a term they would reserve for the product of the neutralisation of an H+ acid. They would call this an adduct or a complex.
He modified the definition of acids to include Lewis acids. A Lewis acid is a species that can accept a lone pair of electrons from another species. Conversely, a Lewis base is a species that can donate a lone pair of electrons to another species. Previous definitions of acids and bases include the Bronsted-Lowry theory, which says that an acid is a compound that produces H+ ions and a base is a compound that produces OH- ions.
Cl- in aqueous solution is neutral, but according to Lewis theory it is base because it is electron donor. you can learn more on wikipedia: http://en.wikipedia.org/wiki/Lewis_acids_and_bases
Base
Br- is a Lewis base.
HCL is the conjugate acid pair of Cl. And Cl is the conjugate base pair of HCl.
Sf6 acts as an lewis acid............
Lewis Base Guillermo Correa
The anion from an acid is Cl- and the cation from a base is Na+.
Cl- is the negative chlorine ion is its neither acidic or alkaline. H+(aq)Cl-(aq) is Hydrochloric acid a common labrtory acid
Lewis acid is an electron acceptor / Lewis base is an electron donor. It is helpful to use this definition of acid and base in (1) organic chemistry (2) also when there are no Hydrogens present in the molecule. BF3 is a Lewis acid it seeks out and can accept electrons.
PMe3 is a Lewis base(elctron donor).
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Being amphoteric water can react both: Lewis acid and Lewis base.