Complex sentence: In chemistry, the Brønsted-Lowry acid-base theory or Brønsted-Lowry concept is an acid-base theory describing the reaction mechanism between acids and bases, and was independently proposed by Johannes Nicolaus Brønsted and Thomas Martin Lowry in 1923.
Split into simpler sentences: In chemistry, the Brønsted-Lowry acid-base theory is an acid-base theory. It was proposed independently by Johannes Nicolaus Brønsted and Thomas Martin Lowry in 1923.