Which of the following ions represents the strongest base? 1) 1 2) II 3) III 4) IV 5) They are all of equal strength. Which statement best descrives the following reaction? NH3+BF3H3NBF3 1) An acid-base reaction where NH3 acts as a Lowery-Bronsted acid. 2) An acid-base reaction where NH3 acts as a Lowery-Bronsted base. 3) An acid-base reaction where NH3 acts as a Lewis acid. 4) An acid-base reaction where NH3 acts as a Lewis base. 5) None of the above adequately describe the reaction