Hard water is water with high concentrations of dissolved ions, in particular ca...
Question
Hard water is water with high concentrations of dissolved ions, in particular calcium and
Options
A)
magnesium ions
B)
nitrogen ions
C)
phosporus ions
D)
helium ions
The correct answer is A.
Explanation:
Hard water is water with high concentrations of dissolved ions, in particular calcium and magnesium ions
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