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CONCEPTUAL DEFINITION OF ACIDS AND BASES
THEORY ACIDS BASES
ARRHENIUS
Acids are substancesthat yield H+ (or H3O+)as the only positiveion in solution.
Bases are substancesthat yield OH- ions asthe only negative ionin solution.
BRONSTED –LOWRY
Acids are proton (H+)DONORS.
Bases are proton (H+)ACCEPTORS.
LEWISAcids are ELECTRONPAIR ACCEPTORS
Bases are ELECTRONPAIR DONORS