A piece of dialysis tubing is filled with a starch solution and placed in a jar

Question

A piece of dialysis tubing is filled with a starch solution and placed in a jar of distilled water. An Lugol's iodine solution (IKI) is added to the water surrounding the dialysis sack. Describe what you would expect to see after waiting for a while.

the starch should move out of the bag and react with the IKI in the jar and turn it blue-black, though the IKI won't move into the bag

the IKI should move into the bag and react with the starch and turn it blue-black, though the starch won't move out of the bag

neither the IKI or the starch will move through the bag

none of the above will happen

the starch should move out of the bag and react with the IKI in the jar and turn it blue-black, though the IKI won't move into the bag

the IKI should move into the bag and react with the starch and turn it blue-black, though the starch won't move out of the bag

neither the IKI or the starch will move through the bag

none of the above will happen

Explanation / Answer

Describe what you would expect to see after waiting for a while:

B) The IKI should move into the bag and react with the starch and turn it blue-black, though the starch won't move out of the bag

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