istry, there are three definitions in common use of the word base, known as Arrhenius bases, Brønsted bases, and Lewis bases. All definitions agree that bases are SUBSTANCES which react with acids as originally proposed by G.-F. Rouelle in the mid-18th centuryAn acid is a molecule or ion capable of EITHER donating a proton, known as a Brønsted–Lowry acid, or, capable of forming a covalent bond with an electron pair, known as a Lewis acid. The first category of acids are the proton donors, or Brønsted–Lowry acidsWhen a strong base reacts with a strong acid, a neutral SALT is formed. When a strong base reacts with a weak acid, a basic salt is formed. When a strong acid reacts with a weak base, an acidic salt is formed.The reaction of an acid with a base is called a neutralization reaction. The products of this reaction are a salt and water. ... For example, the reaction of hydrochloric acid, HCl, with SODIUM hydroxide, NaOH, solutions produces a solution of sodium chloride, NaCl, and some ADDITIONAL water molecules.