AP BIOLOGY

Detailed explanation-1: -Hydrogen bonds are an example of adhesion COHESION.

Detailed explanation-2: -Hydrogen bonds have a dominant effect on the adhesion of inorganic oxide particles, such as SiO2 and Al2O3, to hydrophilic silicon surfaces.

Detailed explanation-3: -Cohesion: Hydrogen Bonds Make Water Sticky The property of cohesion describes the ability of water molecules to be attracted to other water molecules, which allows water to be a “sticky” liquid.

Detailed explanation-4: -A water drop is composed of water molecules that like to stick together-an example of the property of cohesion. In the picture of pine needles above, the water droplets are stuck to the end of the pine needles-an example of the property of adhesion.

Detailed explanation-5: -Hydrogen bonding is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F atom and another very electronegative atom.