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)
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what the-
To determine which item will have a chemical reaction with iodine, you need to understand the properties of iodine and the items listed. Iodine is a dark purple solid that sublimes into a purple vapor when heated, and it can react with certain substances to produce color changes.
You haven't provided a list of items, but in general, iodine reacts with substances that contain starch. Starch is a common polysaccharide found in various white powder items, such as potatoes, cornstarch, or wheat flour. When iodine comes into contact with starch, it forms a blue-black complex known as iodine-starch complex. This color change indicates a chemical reaction.
Therefore, if any of the items listed are sources of starch (such as potatoes, cornstarch, or wheat flour), they will likely have a chemical reaction with iodine and cause a color change. Other non-starch items on the list may not produce any noticeable reaction.