PH

question 68

Multiple Choice

pH

• A) is a measure of the hydrogen ion concentration in a solution.
• B) is measured using a scale from 5 to 8.
• C) is measured using a linear (not logarithmic) scale.
• D) is an abbreviation for "power of helium."
• E) is a measure of the OH⁺ concentration of a solute.

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Definitions:

Earned Income

Income derived from active participation in a business, including wages, salaries, tips, and other compensation.

Education Credit Deduction

A tax benefit that reduces the amount of income tax owed by individuals paying for higher education expenses.

Qualified Expenses

Costs recognized by the IRS for specific tax benefits, such as education-related expenses eligible for tax credits.

Dependent

An individual, usually a child or spouse, who relies on another person for more than half of his or her financial support and qualifies for potential tax benefits on the caregiver's tax return.