difference between hardvwater and soft water
Answers
ANSWER
Hard water
-It contains minerals such as Calcium and Magnesium salts i.e carbonates.
-These contain and magnesium of calcium
-It produces scum when it is treated with soap. With hard water, soap solutions form a white precipitate instead of producing lather, because the 2+ ions destroy the surfactant properties of the soap by forming a solid precipitate.
-So if we need to clean clothes in Hard Water we need to use Detergents.
Example of source = Tap water, impure rainwater etc.
Soft Water
-It contains magnesium and calcium in low concentrations.
-It does for a foam with soap. It does not form any scum.
-Soft water naturally occurs where rainfall and the drainage basin of rivers are formed of hard, impervious and calcium-poor rocks.
-Both detergent and Soap can be used in soft water.