chemical, e.g. if you have silver, and it tarnishes, the dark spots (the tarnished areas) are actually silver oxide. If it were a physical change, the silver would need to change states of matter. Into gas, liquid or plasma
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Yes, tarnishing is a physical change. It is a surface reaction that alters the appearance of a material without changing its chemical composition.
chemical change
a physical property
Chemical Change.--its tarnish!
Chemical
Silver platter tarnishing is a chemical change: a reaction with hydrogen sulfide.