AP BIOLOGY

Detailed explanation-1: -Generally speaking, water is good at dissolving ions and polar molecules, but poor at dissolving nonpolar molecules.

Detailed explanation-2: -Water is a Polar Covalent Molecule The unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles-a positive charge on the hydrogen pole (side) and a negative charge on the oxygen pole (side).

Detailed explanation-3: -Oxygen gas, a nonpolar molecule, does dissolve in water-it is this oxygen that the fish take in through their gills. The reason we can enjoy carbonated sodas is also due to a nonpolar compound that dissolves in water.

Detailed explanation-4: -Water is considered the universal solvent since it can dissolve both ionic and polar solutes, as well as some nonpolar solutes (in very limited amounts). The solubility of a solid in water increases with an increase in temperature.