Question

diffetence between hard and soft water 10th class cbse

Answer 1

Hard Water



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The bulk of the water supply in the United States is hard water. This is because it is from ground water. Ground water is rainwater that has fallen and seeped into the ground until it reaches an aquifer, where it becomes part of a water source for a well or a spring.

As the water seeps through the ground, it is naturally purified and picks up minerals from the rocks it seeps through. Typical minerals are sulfur, lime, magnesium and calcium. After it soaks up enough of these minerals to have a concentration of at least one grain per gallon, or GPG, the water is said to be hard.

Soft Water



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Soft water, on the other hand, has very little of these minerals in it--less than one GPG. Most surface water, such as that in lakes, rivers or collected rainwater, is soft.

Water softeners can be used to remove the calcium and magnesium from hard water by using sodium.

Answer 2

hard water is water that contains an appreciable quantity of dissolved minerals like calcium and magnesium soft water is treated water in which the only ion is Sodium as rain waterfalls it is naturally soft on the other hand soft water tastes salty and is sometimes not suitable for drinking