Question
Cite the evidence that indicates that both physical and chemical changes occur when a copper wire is heated in a Bunsen burner flame.
Step 1
Physical Change: When a copper wire is heated in a Bunsen burner flame, it undergoes a physical change in the form of thermal expansion. As the copper wire gets hotter, its atoms vibrate more and the wire expands in size. This is a reversible change, as the wire Show more…
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