Salt (sodium chloride) is made from positive sodium ions bonded to negative chloride ions. Water can dissolve salt because the positive part of water molecules attracts the negative chloride ions and the negative part of water molecules attracts the positive sodium ions.
Explanation:
When sodium chloride is dissolved in water, the polar water molecules are able to work their way in between the individual ions in the lattice. The water molecules surround the negative chloride ions and positive sodium ions and pull them away into the solution. This process is called dissociation.
This weak section of blood vessel is called an ANEURYSM. Aneurysm is defined as an excessive localized enlargement of an artery which is caused by the weakness of the artery wall. This weakness allows the artery to increase in size abnormally.
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