Question

a copper wire is left outside on the ground for several weeks. which statement describes a change resulting from the chemical properties of the wire? a. it conducts electricity when lightning strikes it. b. it becomes tarnished. c. it melts when heated. d. it bends when someone steps on it.

Explanation:

Conductivity (A) is a physical property. Melting (C) and bending (D) are physical - state changes. Tarnishing of copper is a chemical change as copper reacts with substances in the air like oxygen and sulfur - containing compounds to form a new substance (copper oxide or other copper compounds), which is due to its chemical properties.

Answer:

B. It becomes tarnished.