What happens to gas particles when they are compressed? (1 point)
Responses
They bump into each other less.
They bump into each other less.
They get closer together.
They get closer together.
They have more space.
They have more space.
They start moving faster.
They get closer together.
Elisa adds blue food coloring to a beaker full of water. She watches as the food coloring slowly disperses throughout the water. Soon, it is evenly spread out, and the liquid in the beaker looks blue.
Which statement describes what is happening in this scenario?
(1 point)
Responses
The blue food coloring, the solvent, is being compressed into the water, the solute.
The blue food coloring, the solvent, is being compressed into the water, the solute.
The blue food coloring, the solute, is dissolving into the water, the solvent.
The blue food coloring, the solute, is dissolving into the water, the solvent.
The blue food coloring, the solvent, is dissolving in the water, the solute.
The blue food coloring, the solvent, is dissolving in the water, the solute.
The blue food coloring, the solute, is being compressed into the water, the solvent.
The blue food coloring, the solute, is being compressed into the water, the solvent.
The blue food coloring, the solute, is dissolving into the water, the solvent.
Which statement is always true about diffusion? (1 point)
Responses
During diffusion, particles move from one area in the room to other areas of the room.
During diffusion, particles move from one area in the room to other areas of the room.
During diffusion, particles leave the space that they occupy and go to a different space.
During diffusion, particles leave the space that they occupy and go to a different space.
During diffusion, particles start out colorless and eventually change to a different color.
During diffusion, particles start out colorless and eventually change to a different color.
During diffusion, particles move from an area of high concentration to an area of low concentration.
During diffusion, particles move from an area of high concentration to an area of low concentration.
During diffusion, particles move from an area of high concentration to an area of low concentration.
Particle Model Quick Check
4 of 44 of 4 Items
Question
At what point, if any, does the process of diffusion stop? (1 point)
Responses
Diffusion stops when all particles have moved from one area to another.
Diffusion stops when all particles have moved from one area to another.
Diffusion stops when particles are at an equal concentration in the area they occupy.
Diffusion stops when particles are at an equal concentration in the area they occupy.
Diffusion does not stop happening because there is always an area of lower concentration.
Diffusion does not stop happening because there is always an area of lower concentration.
Diffusion does not stop happening because particles are always moving.
Diffusion does not stop happening because particles are always moving.