2. what are the source of water. Explain the temporary and permanent hardness.
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Some sources of water are
1. Ocean(salty dissolved water)
2. Lakes
3. Glaciers
4. Rivers
5. Rain
Hardness of water water is caused by bicarbonates of certain elements like calcium carbonate , temporary hardness refers to a situation of water hardness which can be cured or water can be normalized by boiling.
ON THE OTHER HAND
Permanent hardness refers to a situation in which water cannot be normalized by boiling.
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Answer:
Temporary hardness is treated by heating the hard water.
Explanation:
When the water is heated the calcium and magnesium hydrogen carbonates gets precipitated out and then it can be separated by physical means. Permanent hardness of water is caused when chlorides and sulfides of calcium and magnesium are dissolved in water.
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