Question

(Multiple choice) Which actions are part of the dissolution process of an ionic solute in water?

The ions are pushed together to form molecules.

Each ion is surrounded by water molecules.

The water molecules attract some ions and repel others.

The ions in the solute separate from each other.

The water molecules break apart into ions.

Answer 1

Answer: Each ion is surrounded by water molecules

Explanation: The ions are surround by the water molecules which act as a barrier around the ions and prevent the recombination of ions. The ions are said to be hydrated.

Answer 2

Answer:

Each ion is surrounded by water molecules.

Explanation:

During dissolution of ionic solute in water the following process occur

a) Breaking of molecule into separate ions (need lattice energy)

b) hydration of each ion by water molecules (hydration energy is released)

c) due to hydration the ions of solutes further become far from each other.

There is no breaking of water molecule or the ions do not combine to form molecule.