Consider two particulate-level scenarios:
• Scenario X: Original molecules break apart and atoms recombine into entirely new molecular species.
• Scenario Y: Distances between molecules change, but each molecule retains its original identity.
Which classification of the scenarios is most accurate?
a) Both scenarios depict physical changes.
b) Scenario X is a chemical change; Scenario Y is a physical change.
c) Scenario X is a physical change; Scenario Y is a chemical change.
d) Both scenarios depict chemical changes.