Achemist lectures about the following definition for acids and bases. the acid-base behavior is analyzed in terms of how electrons are transferred between compounds rather than in terms of how hydrogen ions are transferred. what is the chemist defining? the arrhenius concept of acids and bases the classical concept of acids and bases the lewis concept of acids and bases the bronsted-lowry concept of acids and bases

The correct answer is "Lewis concept of acids and bases".

A Lewis acid accepts an electron pair whereas a Lewis base donates an electron pair.

BF₃ is a Lewis acid NH₃ is a Lewis base.

BF₃ has a vacant p orbital that can accept an electron pair. NH₃ has a lone pair of electron that it can donate.

NH₃ + BF₃ --> NH₃-BF₃

Lewis Lewis   coordinate bond

base   acid

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.