Name any two common examples of hard water.
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calcium and magnesium and so on
definition: water that contains high amount of dissolved mineral are calles hard water
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Hard water: Water that contain high amout of dissolved minerals or ions such as calcium, magnesium etc.
eg- Groundwater like deep wells
Hard water is formed when water percolates through deposits of limestone, chalk or gypsum which are largely made up of calcium and magnesium carbonates, bicarbonates and sulfates.
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