Pure water is composed of two hydrogen molecules and one oxygen molecule, thus the formula H20.
Outside of a lab, it is quite unlikely that you will encounter pure water.
Dec. 17,2011
Water molecule consists of two hydrogen atoms and one oxygen atom.
Hard water is not pure water. It contains ions such as calcium ions and magnesium ions. calcium ions cause permanent hardness whereas, magnesium ions cause temporary hardness.
True, outside of a lab, natural water will always contain some chemical species, ions or undissolved microscopic materials that are not visible to the naked eye.
Hard water contains carbonates and bicarbonates of calcium and Magnesium.
Hard water contains more calcium and can casue scaling on heater elements found in dishwashers, kettle and washing machines.
Elements of hard water are potentially hazardous at about 0.3 to 1.5 PPM.
84 Elements
There are only 2 elements in water: hydrogen and oxygen.
Solid liquid gas. A solid is hard like ice. A liquid is water. A gas is water just boiled.
magnesium and calcium.
The only elements in pure water are those of which water itself is comprised ...hydrogen and oxygen. In impure water, any other elements that are themselvessoluble in water, or that are components of water-soluble compounds, or that areground up fine enough to be physically suspended in water, can also be found.
element are fond in compounds and water
The elements y and u in hard water usually refer to calcium (y) and magnesium (u) ions. These minerals are responsible for making water hard, which can lead to issues like scaling in pipes and reduced efficiency of soap.
Calcium and magnesium are the main metals found in hard water areas. These minerals dissolve in water as it passes through rocks like limestone and chalk, leading to the formation of hard water.
Al, Si