In Cation-Exchange Resins,what Ion Replaces Ca²⁺ and Mg²⁺ in the Hard

question 134

Multiple Choice

In cation-exchange resins,what ion replaces Ca²⁺ and Mg²⁺ in the hard water that is passed over the resin?

• A)H⁺
• B)Li⁺
• C)Na⁺
• D)K⁺
• E)Ba²⁺

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