If something is a base it is characterized by a slippery feel and changes litmus blue. Bases also release OH- in solution. Just like the concept of making something less acidic by adding a base, you can do the same to a base by adding an acid to it. When you combine a base and an acid (neutralization) , they will always make water and salt. On a pH scale, something is considered a base if it has a pH between 8 and 14, is it a base. Many household items are bases, like egg whites, baking soda, and cleaning products such as ammonia which I chose for my picture. (Carpi, 2003)
Carpi, A. (2003). Acids and Bases. Retrieved from http://www.visionlearning.com/library/module_viewer.php?mid=58
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