Question
Carbon dioxide subliming is an example of which of the following? A. Physical change B. Mass change C. Nuclear change D. Chemical change
Ask by Christensen Coleman. in the United States
Jan 21,2025
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Answer
Carbon dioxide subliming is an example of a physical change.
Solution
Carbon dioxide subliming refers to the process where solid carbon dioxide (dry ice) transitions directly into carbon dioxide gas without passing through a liquid phase. This transformation involves a change in the state of matter but **does not alter the chemical composition** of the substance.
- **Physical Change:** Involves changes in physical properties (like state) without altering the chemical structure. Sublimation is a classic example.
- **Mass Change:** Generally refers to processes where mass is lost or gained, which isn't the primary focus in sublimation.
- **Nuclear Change:** Involves changes to an atom's nucleus, which is not related to sublimation.
- **Chemical Change:** Involves a change in the chemical composition, which doesn't occur during sublimation.
**Answer:**
A. Physical change
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Carbon dioxide subliming is a classic example of a physical change. This fascinating process occurs when solid carbon dioxide, commonly known as dry ice, transitions directly into gas without passing through a liquid state. The beauty of sublimation is that the chemical composition of carbon dioxide remains unchanged during this transformation. For those curious about real-world applications, sublimating dry ice is often utilized in the food industry for creating fog effects, preserving perishable items during shipping, or even in Halloween decorations to add an eerie atmosphere. It’s a captivating way to give life to special events while demonstrating the intriguing behaviors of matter!
