A chemistry class is experimenting with iodine to see which common white powder items will react and make the iodine change color. Which item listed will have a chemical reaction with iodine?

Question

cornstarch
powdered sugar
baking soda
salt

Answer 1

Cornstarch and powdered sugar do not have a chemical reaction with iodine. However, both baking soda and salt can react with iodine and cause a change in color.

Answer 2

Answer 3