It depends on how you look at it, and what you're trying to determine.
An element key shows you the name of the element, its atomic number, its symbol, and its average atomic mass.
nitrogen
Chlorine is the element that purifies water. Its symbol is Cl.
Water is a compound. it is neither element nor mixture.
Hydrogen is the lightest and most abundant element in the universe. It is a colorless, odorless, and highly flammable gas. It is also a key component of water and many organic compounds.
The most abundant element in the hydrosphere is oxygen, mainly in the form of water (H2O). This is followed by hydrogen, which is also a key component of water.
A water heater works by using a heating element or a burner to heat water stored in a tank. The key components that make it function effectively include the thermostat to control the temperature, the heating element or burner, the tank to store the heated water, and the pressure relief valve to ensure safety.
An element key is a unique identifier associated with each element in the periodic table. It typically consists of the element's one- or two-letter symbol, which is used to represent the element in chemical formulas and equations. The element key helps to distinguish each element and is essential for organizing and categorizing elements in the periodic table.
developing a merchant marine to promote water transport
The key element of schizophrenia is disordered thinking. This can manifest in delusions, hallucinations, or strange speech.
Water is not an element
The key initial element in developing proforma statements is sales forecast.
An element key shows you the name of the element, its atomic number, its symbol, and its average atomic mass.
Emotions
what is the key element of skill matrix
key element in fire procedures
Water is not an element (H is an element, O is an element, when combined together it is not an element). See related question below.