calcium and magnesium - but also carbonate if you were to choose a third
chloride,sulphates and bicarbonates of calcium and magnesium
ya mamHard water contains calcium and magnesium ions that cause hard water stains and limescale formation.
The name of the chemical formula CaCO3 is calcium carbonate. Calcium carbonate is commonly found in rocks and is created when ions in hard water react with carbonate ions to create limescale. The hardness of water is measures in ppm CaCO3.
Water and heat
Several factors influence water resistivity. Some of the most important are 1) the concentration of ions in the water; 2) the mobility of the ions in the water (smaller ionic radius ions tend to decrease water resistivity more than larger ionic radius ions); 3) the oxidation state of the ions; and 4) the temperature of the water.
Homogenous. AkA solution.
The metal cations are responsible for making water hard. Examples of these cations includes the calcium ions, the magnesium ions, the aluminum ions, and the manganese ions.
Hydrogen ions
The hard ions in the water are more attracted to the carbonate ions -2 charge
hydrogen and oxygen ions and some times impurities
ya mamHard water contains calcium and magnesium ions that cause hard water stains and limescale formation.
Hard water has high concentrations of Ca2+ and Mg2+ ions dissolved in it. Boiling the water causes these ions to come out of the water as lime scale. However it does not remove all the ions causing hard water. To do this you need to pass the water though a 'de-ionising' filter.
Hard water contains a lot of ions , which can lead to the build up of limescale.
Hard water has natural ions dissolved in it. It keeps shampoo for forming suds, it forms soap scum, and it leaves calcium and other deposits in your plumbing. Soft water doesn't have these ions.
Copper ions, Cu2+, sulfate ions, SO42- and in the most commonly encountered form,CuSO4.5H2O water =)
The name of the chemical formula CaCO3 is calcium carbonate. Calcium carbonate is commonly found in rocks and is created when ions in hard water react with carbonate ions to create limescale. The hardness of water is measures in ppm CaCO3.
The concentration of hydrogen ions is commonly expressed as pH.
Usually calcium & magnesium ions.