Question

What property of water helps it "stick" to itself and form a dome on the penny using the pipette

Answers

GPT-4o mini
The property of water that helps it "stick" to itself and form a dome on the penny is called **cohesion**. Cohesion refers to the attractive forces between molecules of the same substance, in this case, the water molecules. This attraction is primarily due to hydrogen bonding, which causes water molecules to pull toward each other.

When water is added to the penny using a pipette, the cohesive forces between the water molecules are strong enough to hold them together and create a dome shape on the surface of the penny. Additionally, the phenomenon of **surface tension** also plays a significant role, as it is the result of cohesive forces that causes the liquid to minimize its surface area and form a shape that can hold a certain volume of water without spilling over.