What Is the Average Oxidation Number of Cu in the 1-2-3

question 55

Multiple Choice

What is the average oxidation number of Cu in the 1-2-3 superconductor YBa₂Cu₃O₇ if Y is in the +3 oxidation state?

• A)+2
• B)+2.33
• C)+0.67
• D)+4.33

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Definitions:

Required Return

The minimum annual return rate that incites people or companies to allocate resources to a particular investment or project.

Constant Growth

A model in finance that assumes a stock’s dividends will continue to grow at a uniform rate indefinitely, used to estimate the stock's current value.

Dividends

Proceeds allocated by a corporation to its share owners, principally derived from the business's earnings.

Rate Of Return

The fiscal growth or shrinkage in an investment's value during a particular lapse of time, marked as a percentage of the initial investment expense.