AP BIOLOGY

Detailed explanation-1: -Water also attracts other polar molecules (such as sugars), forming hydrogen bonds. When a substance readily forms hydrogen bonds with water, it can dissolve in water and is referred to as hydrophilic (“water-loving”).

Detailed explanation-2: -Adhesion refers to the tendency of water molecules to be attracted, or ‘’stick”, to other substances. This is a result of the covalent bond between the two hydrogen atoms and the one oxygen atom in the water molecule.

Detailed explanation-3: -Adhesion is caused by the polarity of water. Water molecules have an uneven sharing of electrons due to covalent bonding. This creates a negative and positive end of each water molecule. This results in water being attracted to other molecules.

Detailed explanation-4: -This is because the water molecules are attracted to the charged glass walls of the capillary more than they are to each other and therefore adhere to it. This type of adhesion is called capillary action.

Detailed explanation-5: -Water is highly cohesive-it is the highest of the non-metallic liquids. Water is sticky and clumps together into drops because of its cohesive properties, but chemistry and electricity are involved at a more detailed level to make this possible.