Which is an example of a physical change?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the 5005 Blue Notes Exam with our comprehensive study tools, including flashcards and detailed multiple-choice questions. Enhance your understanding and ensure success on your test with clarity and confidence.

Multiple Choice

Which is an example of a physical change?

Explanation:
This question hinges on distinguishing physical changes from chemical changes by whether the substance’s identity changes. Boiling water is a physical change because you’re only changing its state from liquid to gas while the substance remains water (H2O). No new substance is formed, and the process is reversible by cooling. The other scenarios involve chemical transformations: baking a cake relies on chemical reactions that create new substances; burning wood produces ash, carbon dioxide, and other products; boiling an egg involves denaturation and coagulation of proteins, which are chemical changes. So boiling water best exemplifies a physical change.

This question hinges on distinguishing physical changes from chemical changes by whether the substance’s identity changes. Boiling water is a physical change because you’re only changing its state from liquid to gas while the substance remains water (H2O). No new substance is formed, and the process is reversible by cooling.

The other scenarios involve chemical transformations: baking a cake relies on chemical reactions that create new substances; burning wood produces ash, carbon dioxide, and other products; boiling an egg involves denaturation and coagulation of proteins, which are chemical changes. So boiling water best exemplifies a physical change.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy