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  • 14-09-2021
  • Chemistry
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examples of hard water​

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keimyahwilcox keimyahwilcox
  • 14-09-2021

Answer:

Water is considered hard when it contains a large amount of the cations (positively-charged ions) Ca2+, Mg2+, and/or Fe3+. These ions are typically introduced into a water supply when the water drips through a mineral. Limestone is an example of a mineral that contains a source of calcium.

Explanation:

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