The item that will have a chemical reaction with iodine and cause a color change is cornstarch. When iodine comes into contact with cornstarch, it forms a blue-black complex, which is a characteristic reaction used to test for the presence of starch. The other items listed (baking soda, powdered sugar, and salt) do not react with iodine in this manner.
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?(1 point) Responses cornstarch cornstarch baking soda baking soda powdered sugar powdered sugar salt
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