Aqueous Solutions of Many Metal Cations Have a PH Different

question 38

Multiple Choice

Aqueous solutions of many metal cations have a pH different from 7. Which one of the following statements about these cations is not correct?

• A)Alkali metal cations such as Na ^ and K ^ have a negligible effect on the pH.
• B)Small and highly charged main group metals such as Al^{3 } produce acidic aqueous solutions.
• C)For transition metal cations, the cation with the higher oxidation state produces more acidic solution; for example, Fe^{3 } (aq) is more acidic than Fe^{2 } (aq).
• D)A solution containing Cr^{2 } is expected to be considerably more acidic than a solution of equal concentration containing Ni^{2 } .
• E)The Lewis acidity of a metal cation is a good measure of its ability to activate a water molecule to lose a proton and produce a hydronium ion.

Understand the distinction between goods and services, including examples and characteristics.

Identify the differences between durable and nondurable goods.

Recognize the impact of product types on marketing strategies.

Comprehend the concept of a product, including tangible and intangible attributes.

---

Definitions:

Odd Years

Years that are not evenly divisible by two, indicating an odd number as the final digit.

W-3

A tax form used in the United States that summarizes the total wages paid and taxes withheld for all employees of a company.

FICA-Medicare

The portion of FICA taxes that funds Medicare, providing health insurance for the aged and disabled.

Employees' Contribution

Monies that employees contribute from their salaries towards benefits, retirement plans, or taxes.