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प्रश्न
Give balanced equation to show how temporary hardness enters into water.
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उत्तर
Temporary hardness: Enters in water when rain water containing CO2 falls on earth and combines with limestone [CaCO3] & magnesite [MgCO3] layers forming respective soluble bicarbonates.
\[\ce{CaCO3 + H2O + CO2 -> \underset{\text{Cal. bicarbonate}}{Ca[HCO3]2}}\]
\[\ce{MgCO3 + H2O + CO2 ->\underset{\text{Magnesium bicarbonate}}{Mg[HCO3]2}}\]
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संबंधित प्रश्न
Give two examples of hydrated substances.
Give two examples for Efflorescent substance.
Define the Soft water.
Define the Hard water.
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you distinguish between hard and soft water?
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you prove the advantage of detergent over soap.
Fill in the blank:
Hard and soft water can be distinguished using _____.
Give two natural sources of hard water.
A sample of water is given in a trough. State how would you prove experimentally whether the given sample is hard water or soft water.
Name the process by which temporary hardness is easily removed from the water.
