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What is the chemical symbol for water?
Water is made up of a number of chemical compounds. The most common of these is sodium hydroxide, which is one of the most widely used chemical symbols in the world. It has been used as a symbol of water since at least the 19th century, when it was first introduced into the United States. In the early 1900s, the U.S. Department of Health and Human Services (HHS) developed the Chemical Symbol for Water (CNTW), which was developed in collaboration with the National Oceanic and Atmospheric Administration (NOAA) and the World Meteorological Organization (WMO). The CNW symbol is derived from the Greek καθη (water) meaning "water" and γδέριος (hydrochloric acid), both of which are used to indicate the presence of chlorine in water. According to the WMO, chlorine is present in a wide range of natural and man-made sources, including, but not limited to, coal, oil, and natural gas, as well as in organic and inorganic fertilizers, pesticides, herbicides, fungicides and insecticides. However, there is no scientific evidence to support the use