Base...donates lone pair off the oxygen. Learn the definition of lewis acid and base before your exam.
An acid is the old term used back in the day to categorize that would release a free positively charged hydrogen atom when dissolved in water. A Lewis acid is a substance that will except an electron pair from a Lewis base, not limited to h2o as the solvent. Though every substance that fit the original definition of an acid is also a Lewis acid, not every Lewis acid is a traditional acid, like AlCl3 and BF3.
Being amphoteric water can react both: Lewis acid and Lewis base.
Sf6 acts as an lewis acid............
Aluminium trichloride is a salt. It is considered an acid after Lewis theory.
I think it is acid, because there is a question that asks the acid site of SO3.
An acid is the old term used back in the day to categorize that would release a free positively charged hydrogen atom when dissolved in water. A Lewis acid is a substance that will except an electron pair from a Lewis base, not limited to h2o as the solvent. Though every substance that fit the original definition of an acid is also a Lewis acid, not every Lewis acid is a traditional acid, like AlCl3 and BF3.
A Lewis acid accepts electron pairs.
Being amphoteric water can react both: Lewis acid and Lewis base.
Lewis acid is an electron pair acceptor.
Sf6 acts as an lewis acid............
Aluminium trichloride is a salt. It is considered an acid after Lewis theory.
I think it is acid, because there is a question that asks the acid site of SO3.
Acids or bases change character based on the solution in which they exist. For instance, HCl is a strong acid in water, but is a weak acid when dissolved in glacial acetic acid. This has to do with the proton affinity of the respective acids and bases. So, nitric acid may act as a base when placed in a solvent that has a lower proton affinity, i.e., the nitric acid will accept the proton as a Bronsted-Lowry base. I'm not as familiar with Lewis acids and bases, but Lewis bases donate electron pairs, and Lewis acids accept them. I'm sure there is a circumstance in which nitric acid will donate an electron pair to a Lewis acid.
An acid accepts an electron pair from a base.
Yes, SO2 can act as a Lewis acid because it is electron-deficient and can accept a pair of electrons from a Lewis base.
Not necessarily. You are thinking about a Brønsted-Lowry acid. However acids can be classified under Arrhenius and Lewis classifications as well, with the latter being the most comprehensive. A Lewis acid is a chemical compound that can accept a pair of electrons. Therefore a strong acid may not have to transfer H+ ions to water although many do. A chemical example is AlCl3.
Cl can act as both a Lewis acid and a Lewis base depending on the reaction it is involved in. As a Lewis acid, Cl can accept an electron pair and form a coordinate covalent bond. As a Lewis base, Cl can donate an electron pair to form a bond.