What is hard water 's formula??
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The formula of hard water is same as that of pure water or soft water. It is H2O. The difference is that hard water contains calcium and magnesium salts in it
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same as water H2O which contains calcium and magnesium salts
hope it helps you ❤️
jhumursarkar68:
Its correct but it can also be written as D2O...
Yes its hard not heavy
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