Consider two particulate-level scenarios: • Scenario X: Original molecules break…
CHEMISTRY · Single correct · AP · Chemistry · Chemical Reactions · Chemical Reactions
Problem
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.