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Subject - General Chemistry

Traditionally, the term acid is used for all compounds that give up H+ (protons) in aqueous solution or form salts with bases by neutralization. Typical acids are:

  1. Mineral acids, e.i. mineral-(salt-)forming acids, e.g. hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid.
  2. Organic acids, e.g. formic acid (methanoic acid), acetic acid (ethanoic acid).

The term acids and bases is used in general for organic and inorganic compounds that fundamentally differ in chemical properties and show a different behavior in reactions. Over time, the definitions for "acid" or "base" were continuously changed to meet the actual scientific knowledge at that time (see acid-base theories).

See also: Brønsted acid , Lewis acid , pka value