Question

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.
10

Answer 1

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