Question

water is considered a polar molecule because:
o a it has oppositely charged regions due to unequal charge distribution
o b it contains equal charges throughout
o c it has no hydrogen bonds
o d it only bonds with lipids

question 2 (1 point)
in a saltwater solution, the solvent is:
o a chloride
o b salt
o c water
o d sodium

question 3 (1 point)
adhesion is best described as
o a repulsion between molecules
o b attraction between water molecules
o c attraction between water and other substances
o d energy required to evaporate water

Explanation:

• For the first question, a polar molecule has an unequal charge distribution resulting in oppositely - charged regions. Water fits this description.
• For the second question, in a salt - water solution, salt is the solute and water is the solvent that dissolves the solute.
• For the third question, adhesion is the attraction between water and other substances, while cohesion is the attraction between water molecules.

Answer:

1. a. It has oppositely charged regions due to unequal charge distribution
2. c. Water
3. c. Attraction between water and other substances