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Hard water contains relatively large concentrations of A. Magnesium ions B. Calcium ions C. Iron ions D. All of these ions
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Hard water contains relatively large concentrations of

A. Magnesium ions
B. Calcium ions
C. Iron ions
D. All of these ions

User Spencer Ruport
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3.4k points

1 Answer

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Answer:

I think the answer is All of these ions

User Colas Nahaboo
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