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Which of the following is an example that includes evidence of a chemical reaction?

A tomato is placed into a blender and chopped up into smaller pieces.

A sample of copper is placed in water and it settles to the bottom

Sugar that is burned gives off an odor and turns brown and then black.

A solid block of ice is heated and it completely melts into a liquid then evaporates.
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sugar that is burned gives off an odor and turns brown and then black
User KeepZero
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