When a Small Amount of HCl or NaOH Is Added

question 61

Multiple Choice

When a small amount of HCl or NaOH is added to a solution of Na₂HPO₄,the pH of the solution barely changes.Based on these observations,all of the following are true concerning the compound Na₂HPO₄,except

• A)Na₂HPO₄ is able to accept extra hydrogen ions from the HCl.
• B)Na₂HPO₄ is able to donate hydrogen ions to the OH⁻ from NaOH.
• C)Na₂HPO₄ adsorbs excess H⁺ and OH⁻ directly onto the surface of its crystalline structure.
• D)Na₂HPO₄ is a salt formed from reacting a strong base with a weak acid.
• E)Na₂HPO₄ acts as a buffer.

Identify the components responsible for the striated appearance of muscle cells.

Distinguish between different muscle types based on their cellular structure.

Recognize the significance of actin and myosin in muscle contraction.

Understand the objectives and phases of network design in supply chain management.

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Definitions:

Government Deficit

Occurs when a government spends more money than it receives in revenue over a specific period, leading to borrowing or currency issuance.

Closed Economy

An economic system that doesn't engage in international trade, relying solely on its own resources and internal market for growth and development.

National Saving

The total amount of savings generated within a country from both the private and public sectors.

Private Saving

The portion of individuals' or households' income that is not consumed or spent on taxes and is instead saved for future use.