How Does Hardness Affect Our Environment?

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Introduction: Water hardness is the presence of dissolved divalent calcium and magnesium cations in a liquid solution such as water. Hard water has more cations, soft water has less cations. Calcium and magnesium is present in many different water supplies because these minerals are in rocks and soils. The Calcium comes from sedimentary rocks such as limestone and dolomite, while Magnesium comes from rocks like olivine and pyroxenes -------earth materials book. Hardness has an affect on the way our water tastes, hydro book. . it will leave a scaly deposit on the inside of pipes, boilers, and tank - the water evaporates leaving behind rocklike deposits consisting mostly of calcite crystals Hard water can be softened at a fairly reasonable cost, but it is not always desirable to remove all the minerals that make water hard. Extremely soft water is likely to corrode metals, although it is preferred for laundering, dishwashing, and bathing. help reduce the chemical bonds between dirt and the surface make it easier to be cleaned. The titration is a very inexpensive experiment that takes a few minutes to perform. The use of AA is a very large, expensive machine which takes merely seconds. Understanding basic water softening techniques is important because we treat water in real life that way. Hard water is passed through a cylinder containing resin beads that have been saturated with sodium. The resin beads have a negative charge and are attached to positively charged sodium
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