Question

you test 3 liquids for their surface tension by adding drops onto a penny. which has the lowest attractions? liquid 1 - failed at 12 drops liquid 2 - failed at 26 drops liquid 3 - failed at 16 drops

Explanation:

Step1: Understand surface tension and intermolecular forces

Surface tension is related to the strength of intermolecular attractions. A liquid with lower intermolecular attractions will have lower surface tension. When drops are added to a penny, the liquid with lower surface tension will form a less stable “dome” of drops on the penny and break (fail) with fewer drops.

Step2: Compare the number of drops for each liquid

Liquid 1 failed at 12 drops, liquid 3 failed at 16 drops, and liquid 2 failed at 26 drops. Since 12 < 16 < 26, liquid 1 had the fewest drops before failing.

Answer:

Liquid 1