Question

When a sugar cube is dropped into a glass of water, which of the following events eventually happens?

a. The sugar comes to rest permanently at the bottom of the glass.
b. The sugar molecules float to the top of the glass.
c. The water molecules bump up against the sugar and pull on the individual molecules.
d. The water molecules react with the sugar molecules and form a third type of molecule.

Answer 1

What do you think?

Answer 2

Think about the concept of osmosis.

Answer 3

When you add sugar to water, what happens? The sugar dissolves...duh!
Now what happens during this process? This should be the key to your answer

During the process of dissolving the solvent (the liquid in which the solute is dissolved, which in this case is the water) forms intermolecular bonds with the molecules of the solute (the object being dissolved)

What are intermolecular bonds you ask?...well these aren't the same as chemical bonds, so its not ionic or covalent bonds, these are just forces of attraction between the molecules, they pull different molecules together...

Now after that not-so-brief description, which do you think it will be?

Answer 4

@abb0t That is not osmosis. Osmosis requires a semi-permeable membrane. This is just diffusion.

Answer 5

Ah, yes, you're right. I forget. Thanks.

Answer 6

I would thik D