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A copper wire was cut into pieces and dropped into a test tube containing acid, Bubbles formed immediately, the liquid in the test tube turned green, and the pieces of wire were no longer visible, which most likely happened to the pieces of copper wire?
А. The copper wire was chemically changed when it was cut and placed in the acid,
B the copper wire was physically changed when it was cut and placed in the acid,
C The copper wire was physically changed when it was cut and chemically changed when it was placed in the acid,
D The copper wire was chemically changed when it was cut and physically changed when it was placed in the acid,