gooey starch molecules instantly trap iodine ions close together to create a dark, blueish-black color. (Dripping liquid iodine onto a potato will turn it the same color, due to all of the spud's ...

This triggered the liquid to oscillate between deep ... forming a starch-iodine complex that creates the visible colour changes. The timing of the colour shifts depends on the concentrations ...

Slowly pour the water (containing the iodine) into the glass of water (containing the liquid starch) It should turn a deep purple color. You just caused a chemical reaction! There are three basic ...

The iodine clock is a common chemistry experiment in which two clear liquids are mixed together to produce a dark, opaque color ... the first liquid is comprised of hydrogen peroxide and sulfuric ...

Iodine is used to test for starch Liquid iodine is used in chemistry labs ... on to a substance and if it contains starch, a deep blue colour will materialise. Here's the science bit!