Question

question 27 (1 point) in a virtual lab experiment, how is cohesion of water demonstrated? a water molecules evaporate immediately b water molecules form rounded drops due to hydrogen bonds holding them together c water molecules do not interact with each other d water molecules spread out evenly with no drop shape question 28 (1 point) in a virtual lab experiment, how is adhesion of water demonstrated in the experiment? a water droplets repel surfaces and slide immediately b water molecules only bond with other water molecules, not surfaces c water molecules dissolve solid surfaces completely d water droplets stick to surfaces and resist sliding off until the tilt angle is high

Explanation:

Cohesion is the attraction between like - molecules. In water, hydrogen bonds between water molecules cause them to form rounded drops. Adhesion is the attraction between unlike - molecules. Water droplets stick to surfaces due to adhesion and resist sliding off until the tilt angle is high.

Answer:

Question 27: b. Water molecules form rounded drops due to hydrogen bonds holding them together
Question 28: d. Water droplets stick to surfaces and resist sliding off until the tilt angle is high