Two Parallel Plates Are Immersed in Salt Water, and a Battery

question 29

Multiple Choice

Two parallel plates are immersed in salt water, and a battery is connected to the plates. Which of the following happens at the surface of the positively charged plate?

• A)Only Na ions migrate to the plate.
• B)Both Cl and Na ions migrate to the plate, with their hydration shells removed.
• C)Only Cl ions migrate to the plate.
• D)The hydration shells around the Na and Cl ions shield them from the electric field, so nothing happens.

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