The item that will have a chemical reaction with iodine is cornstarch. When iodine comes into contact with cornstarch, it forms a blue-black complex, indicating a positive reaction. The other items listed (powdered sugar, salt, and baking soda) do not react with iodine in a way that causes a color change.
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
powdered sugar
powdered sugar
salt
salt
cornstarch
cornstarch
baking soda
1 answer