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?

Answer 1

In a chemistry experiment, iodine typically reacts with starch to produce a blue-black color change. Therefore, if one of the common white powder items in your experiment is starch (often found in foods like flour, corn starch, or other similar items), it will react with iodine and cause a color change. Other common white powders like baking soda, sugar, or flour without starch generally do not cause a reaction with iodine. If you provide specific items, I can help determine which one will react with iodine.