Question

what is hard water and soft water​

Answer 1

Explanation:

Hard water:

The water with naturally present minerals like magnesium and calcium with detectable amount is called hard water. These minerals are beneficial for health. They add flavour to hard water.

Soft water:

It is treated water. It is left with only cations and that is sodium. It has a salty taste.

To make you understand how hard water and soft water are different from each other, here are the some of the major differences between hard water and soft water:

Difference between Hard water and Soft water

HARD WATER

SOFT WATER

It is rich in minerals

Contains very few elements

Soap is not so effective

Soap is easily effective

No foam and lather from soaps

Bubbly lather from soaps

Leaves spots on the washed dishes after they are dried

Does not leave any spots on dishes after they are dried

Contains minerals like magnesium and calcium

Contains sodium ion

Sometimes preferred drinking water

Sometimes not preferred drinking water

Example: Groundwater like deep wells

Example : Rainwater

Hair and skin become dry

Hair and skin become soft

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Answer 2

$\small\bold{\color{grey}{{HARD~WATER}}}$

Hard water is water that has high mineral content. 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. 

$\small\bold{\color{grey}{{SOFT~WATER}}}$

Soft water is surface water that contains low concentrations of ions and in particular is low in ions of calcium and magnesium. Soft water naturally occurs where rainfall and the drainage basin of rivers are formed of hard, impervious and calcium-poor rocks.