A chemical symbol is an abbreviation of the name of a chemical element. The name is derived from the name of the element, which is usually in Latin. Chemical symbols are made up of one or two letters.
The chemical symbol for water can be written as H2O, with the 2 written is subscript, or as HOH. HOH is the less-common symbol used when referring to water.
The chemical symbol for the type of alcohol found in beverages is C2H5OH. It is known as ethyl alcohol, ethanol or grain alcohol. Other types of alcohol include methanol and isopropanol, which are poisonous to drink.
The chemical symbol of an element is determined by the language used to abbreviate the element. Most chemical symbols use abbreviations of the English name for the element, such as "O" for oxygen, "H" for hydrogen or "Ar" for argon.
The chemical symbol for glucose is C6H12O6. Glucose is a simple sugar substance called a monosaccharide, which is a carbohydrate that contains the elements carbon, hydrogen and oxygen. Another name for glucose is dextrose.
The chemical symbol for oxygen is "O." Oxygen is number 8 on the periodic table of the elements, and it is part of the chalcogen group.
A straight vertical line with three horizontal lines at the bottom represents an earth electrode. The electrode is a conductor of electricity such as a metal plate or water pipe, partially buried in the earth to create a circuit path to the ground.