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?

Question

baking soda

powdered sugar

salt

cornstarch

Answer 1

1) corn starch
2) the indicator will change the color of the substance
3) it will bubble and foam
4) the test was inconclusive because the student forgot to add heat

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Answer 2

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Answer 3

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Answer 4

Thanks @BingBongBongBingClickClapSmack