Question

what is hardness of water​

Answer 1

Answer:

the amount of dissolved calcium and magnesium in water is defined as hardness of water

Answer 2

The simple definition of water hardness is the amount of dissolved calcium and magnesium in the water.

Extra info:

Hard water is high in dissolved minerals, largely calcium and magnesium. When hard water is heated, such as in a home water heater, solid deposits of calcium carbonate can form.

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