Lewis Acid-Base Concept. The Lewis theory classifies a substance as an acid if it acts as an electron-pair acceptor and as a base if it acts as an electron-pair donor. Other ways of classifying substances as acids or bases are the Arrhenius concept and the Bronsted-Lowry concept.ewis Acid-Base Concept. The Lewis theory classifies a substance as an acid if it acts as an electron-pair acceptor and as a base if it acts as an electron-pair donor. Other ways of classifying substances as acids or bases are the Arrhenius concept and the Bronsted-Lowry concept.
Microsoft Excel was created by Microsoft Corporation. It was first released in 1985.
Jobs co-founded Apple in 1976 to sell Wozniak's Apple I personal computer. The duo gained fame and wealth a year later for the Apple II, one of the first highly successful mass-produced personal computers.n 1972, Steve Wozniak designed his own version of the classic video game Pong. After finishing it, Wozniak gave the board to Jobs, who then took the game down to Atari, Inc. in Los Gatos, California.