Being amphoteric water can react both: Lewis acid and Lewis base.
Hydrogen sulfide can donate (SH-) or accept a proton (H3S)+.
H2S is an acid.It is a weak acidic gas.
acid
Lewis base
acid is hbr and the base is h2o
Br- is a Lewis base.
Sf6 acts as an lewis acid............
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.
Its conjugate acid is H3O+
acid is hbr and the base is h2o
Br- is a Lewis base.
There are Bronsted-Lowry bases and Lewis bases... Brønsted bases accept protons (H+) and Lewis bases donate electrons... So something like H2O + H2O--> H3O (hydronium) + -OH would mean that H2O is a Bronsted base and acid. You have to look at it in context.
Sf6 acts as an lewis acid............
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.
Lewis Base Guillermo Correa
Its conjugate acid is H3O+
It is a Lewis base:PCl3 has a lone electron pair in the highest occupied molecular orbital available for donation.( Note: PCl5 is a Lewis acid!)
Neither, it's a salt.
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.
H2o
PMe3 is a Lewis base(elctron donor).