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