Question

10.2 quarter final unit 1
in 2 - 3 sentences, explain how the dissolution (to dissolve) of salts in water relates/ connects to the polarity of water molecules.
sentence stem: waters polarity causes ____ in salts. this results in ____.
note: remember polarity is connected to positive and negative charges of a molecule.

Explanation:

Water is a polar molecule with a partial negative charge on oxygen and partial positive charges on hydrogen. Salts are ionic compounds with positive and negative ions. The polar water molecules are attracted to the ions in the salt. The oxygen (negative part of water) is attracted to the positive ions in the salt, and the hydrogen (positive part of water) is attracted to the negative ions in the salt. This attraction causes the ions in the salt to separate (dissociate). As the ions separate, they become surrounded by water molecules (hydrated) and the salt dissolves in water.

Answer:

Water's polarity causes the dissociation of ions in salts. This results in the dissolution (hydration) of the salt as ions are surrounded by water molecules.