Using the definition of Bronsted-Lowry acid and bases, the H+ donor will be the acid while the acceptor is the base
Consider the reaction between butyllithium and ethanol. Label each reactant in this reaction as a Bronsted acid or base.
C4H9Li + C2H5OH → C4H10 + LiOC2H5
Add two curved arrows to show a plausible mechanism for the reaction. Do not show Li-O bond formation.