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?
A. baking soda
B. cornstarch
C. salt
D. powdered sugar
1. cornstarch
2. color will change
3. bubble and foam
4. the test was inconclusive because the student forgot to add heat.
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