Question

making copper foil from copper metal is physical change or chemical change​

Answer 1

Copper melts, where it changes from solid phase to liquid phase. Similar to burning charcoal, this is a chemical change because the sugar is burning. Sugar is changed into carbon dioxide, water, and sometimes carbon (black soot). A change in color is also observed where the final product becomes black.

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Answer 2

making copper foil from copper metal is a physical change