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What ion causes hardness of water?​

What ion causes hardness of water?​
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18 votes
What ion causes hardness of water?​

User BergQuester
by
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1 Answer

8 votes

Answer:

calcium ions

Step-by-step explanation:

Water hardness is due to the presence of calcium ions, and to a lesser extent, magnesium, iron, and manganese.

User Alex Olteanu
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