We all know that many foods such as vinegar, lemon juice, and more all have something in common, which is a sour taste. Ever wonder why? The reason is because they are all acids. The sour taste is one of the characteristics that classify something as an acid. Acids are also corrosive to metals, turn litmus paper red, and they release H+. On a pH scale, something with a pH between 0 and 6 is considered to be an acid. The lower the pH, the more acidic something is. To make an acid less acidic, you combine it with a base. The picture I chose is of a lemon. Lemon juice is very acidic and has a pH of 2. (Carpi, 2003)
Carpi, A. (2003). Acids and Bases. Retrieved from http://www.visionlearning.com/library/module_viewer.php?mid=58
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