Which statement best describes the structure of water and its nature as a solvent?
1. The water molecule is polar and will dissolve polar molecules, such as sugar.
2. The water molecule is nonpolar and will dissolve nonpolar molecules, such as oil.
3. The water molecule is nonpolar and will dissolve polar molecules, such as vinegar.
4. The water molecule is polar and will not dissolve ionic compounds, such as salt.