Question

what is produced on the top of a pool of water by the mutual attraction between water molecules?

surfactant
a much smaller volume
surface tension
a much higher density

Explanation:

Analyze the question prompt

The question asks: "What is produced on the top of a pool of water by the mutual attraction between water molecules?"

Evaluate the options

• surfactant: A surfactant is a substance (like soap) that reduces surface tension, rather than being produced by the mutual attraction of water molecules.
• a much smaller volume: Mutual attraction does not significantly decrease the overall volume of a pool of water to a "much smaller volume".
• surface tension: The cohesive forces (mutual attraction via hydrogen bonding) between water molecules at the surface create an inward pull, resulting in a "film-like" property known as surface tension.
• a much higher density: While water is dense, the mutual attraction at the surface does not create a significantly higher density compared to the bulk liquid.

Select the correct option

The phenomenon produced at the surface of water due to the cohesive attraction between water molecules is surface tension.

Answer:

• surfactant
• a much smaller volume
• surface tension (Correct answer)
• a much higher density