Question

question 1 of 10
which of the following represents a physical change?

a. phase changing

b. atoms rearranging

c. bonds breaking

d. bonds forming

Explanation:

A physical change involves a change in the physical properties of a substance without altering its chemical composition. Phase changing (like melting, freezing, vaporization) only changes the state of matter (solid, liquid, gas) and no new substance is formed. Atoms rearranging, bonds breaking, and bonds forming are all part of chemical changes as they involve the formation or breaking of chemical bonds and a change in the chemical identity of the substance.

Answer:

A. Phase changing