Which of the Following Statements Are True of PH and Solutions

question 184

Multiple Choice

Which of the following statements are true of pH and solutions? (Read carefully and select all of the correct statements.)

• A)A solution with a pH of 7 is considered neutral.
• B)Only a pH of 8 or higher is alkaline.
• C)The entire pH scale ranges from 1 to 15.
• D)As the number of H⁺ ions in a solution increases, so does the pH value.
• E)A solution with 100 OH^- ions and 200 H⁺ ions is an acidic solution.
• F)The average pH of the blood is the same as the pH of pure water.
• G)The pH of the blood is important for the chemical reactions that take place in the blood.
• H)A body fluid such as gastric juice has the same pH range as blood because both are extracellular fluids.

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Definitions:

Variable Costs

Expenses that change in proportion to the activity of a business, such as costs of goods sold or raw material expenses.

Break-Even Revenue

The amount of income needed to cover all operating expenses, with no profit or loss.

Fixed Costs

Expenses that do not change with the level of production or sales, such as rent or salaries.

Variable Cost

Costs that change in proportion to the good or service that a business produces.