Question

Which of the following explains the formation of the curved surface of water in the graduated cylinder shown below?

A: Hydrogen bonds form between water molecules
B: Ionic bonds form between glass molecules in the cylinder.
C: Covalent bonds form between water molecules and glass molecules in the cylinder.
D: Attractive forces form between polar water molecules and polar glass molecules in the cylinder.

Answer 1

It's D.

Answer 2

Are you sure?

Answer 3

Yes. The graduated cylinders are made of glass, and glass molecules are polar. Water molecules are also polar. Polar molecules stick together because they have a positive charge and a negative charge and so since both the water molecules and glass molecules are polar they stick together and are attracted to each other.

Answer 4

alexis is right it is d

Answer 5

Thank you @Alexis.Sage & @warood :)