Melting butter is a physical change. Which best describes what is happening?

Question

The butter changes into a different substance.
The butter contains a new arrangement of atoms.
The butter cannot turn into a solid again.
The butter no longer contains the same number of atoms.

Answer 1

The statement that best describes what is happening when butter melts is: The butter contains a new arrangement of atoms.

During the melting process, the butter changes from a solid to a liquid state, but its chemical composition (the types and numbers of atoms) remains the same. The arrangement of these atoms changes, allowing the butter to flow as a liquid, but no new substances are formed, and the butter can solidify again when cooled.