Answer:
Polar and soluble molecules.
Step-by-step explanation:
The water is a polar molecule and consists of partial positive and partial negative charge. The water is known as universal solvent as it can dissolves most of the solutes.
The polar molecules can easily dissolve in water. Like dissolves like or polar molecule can dissolve in polar solvents. The soluble molecules that are polar and has similar characteristics like water can easily dissolve in water.
Thus, the answer is polar molecules.