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Answered

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borildls03
36. Two metallic ions commonly present in hard water
a.catwo metallic ions commonly present in hard water ​

Sagot :

Answer:

Mg2+ and Ca2+

Explanation:

Hard water are water that happen to contain salts of calcium and magnesium ions. They can occur as chlorides, sulphates, bicarbonates etc. Hard water wastes soap as it requires an above normal amount to form lathers.

The metallic ions are;

Mg2+ and Ca2+

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