Which of the following statements best describes what happens when a small amoun

Question

Which of the following statements best describes what happens when a small amount of solid potassium fluoride is dissolved in water?

A.

The solid KF breaks apart into separate K and F atoms by interacting with the water molecules.

B.

The solid undergoes a chemical change by reacting with the water.

C.

The heat from the warm water melts the solid, making it a liquid.

D.

Nothing happens, because potassium fluoride is insoluble in water.

E.

The water molecules surround each ion in the solid KF, separating the K ions from the F ions.

Explanation / Answer

when KF is dissolved in water, it breakes into ions
KF -----> K+   +   F-

Wter molecules surround these ions

Answer:
E.
The water molecules surround each ion in the solid KF, separating the K ions from the F ions.

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