Which of the Following Cations Is Found in Hard Water

question 172

Multiple Choice

Which of the following cations is found in hard water?

• A)Ca2+
• B)Fe₃+
• C)Mg₂+
• D)Na+
• E)all of the above

---

Definitions:

Life Insurance

A contract in which an insurer agrees to pay a designated beneficiary a sum of money upon the insured individual's death.

Uniform Commercial Code

A comprehensive set of laws regulating commercial transactions and dealings across the United States, aiming for uniformity among states.

Article 2

Refers to a particular segment of a legal code or document, which could vary significantly by context, often involved in discussing commercial transactions in the U.S. Uniform Commercial Code.

United Nations Convention

An international treaty adopted under the auspices of the United Nations, on various global issues ranging from human rights to environmental protection.