Question

Water has unique properties that make it an amazing substance. Water molecules are able to stick to one another cohesively. This is caused by _____.

Answer 1

Answer: Water has unique properties that makes it an amazing substance. The cohesive forces are the intermolecular forces (hygrogen bonding and Van der Waals forces) which develops the tendency of that resists the liquids to separate.

As a result of this the water molecules forms droplets. These bonds lies in the molecules of the same substances.

Example rain droplets rather than a fine mist, water forms droplets.

Answer 2

This is caused by surface tension.

Step-by-step explanation:

The surface tension of water is the result of hydrogen bonds, which are intermolecular forces caused by the attraction of hydrogen from certain water molecules (which are the positive poles (H +)) to the oxygen of neighboring molecules (which are the negative poles (O -)). The result is the ability of water molecules to stick tightly together.

However, the force of attraction of molecules on the water surface is different from the force that occurs between molecules below the surface. This is because the latter are attracted to other water molecules in all directions: up, down, left, right, forward and backward. This means that they attract each other with the same force.