Carbon dioxide subliming is an example of which of the following?A.Nuclear changeB.Physical changeC.Chemical changeD.Mass changeSUBMITarrow_backPREVIOUS

Step 1: Break Down the Problem

To determine which type of change carbon dioxide subliming represents, we need to analyze the process of sublimation and its characteristics.

Step 2: Relevant Concepts

• Sublimation: The transition of a substance from a solid to a gas without passing through a liquid phase.
• Types of Changes:
  1. Nuclear Change: Changes that affect the nucleus of an atom, typically involving radioactive decay or nuclear fusion.
  2. Physical Change: A change in which the form or appearance of a substance changes but its chemical composition remains the same.
  3. Chemical Change: A change that results in the formation of new chemical substances.
  4. Mass Change: This term is less commonly used in scientific contexts but refers to changes in mass during reactions, typically relevant in chemical changes.

Step 3: Analysis and Detail

In the case of carbon dioxide subliming, it transitions from solid dry ice (CO₂) directly to gas without becoming liquid. This change does not alter the chemical identity of carbon dioxide; it remains CO₂ throughout the process. Therefore, it exemplifies a physical change.

Step 4: Verify and Summarize

The process of sublimation is purely a physical change since it does not involve making or breaking bonds to create new substances.

Final Answer

The answer is B. Physical change.