Multiple choice

Freezing, melting, and boiling are examples of a...

  1. Chemical reactions

  2. Solidiohypermorphology

  3. Physical reactions

  4. Phase changes

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Freezing, melting, and boiling are changes in the state of matter, not changes in chemical composition. These are classified as physical changes or phase changes.