Question

29. Describe in your own words, what happens to the particles when salt dissolves in water.
30. Explain why, we can easily move our hand in air but to do the same through a plank of wood, we nee
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Answer 1

29. When salt dissolves in water the particles move into the intermolecular spaces

30. We can easily move our hand in air due to lass of complexity of molecules but in solids it is not so.

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Answer 2

Answer:

answer when salt dissolved and water the dissoclates into ions when dissolved in water as a result salt particle completely dissolved in water as water is polar solvent and most of the salt are the polar in nature hence this water salt are able to dissolve in water because like dissolved like

Explanation:

ans. we can easily move our hand but a solid wood through a plank we need karate expert the particle of gas are constantly moving in the all directions with different speed therefore they do not have fixed volume and hence completely fill vessel in which they are kept

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