Use the graph to answer the question.

Which statement is the best explanation for the graph?

(1 point)
Responses

As temperature rises, gas particles are moving faster and may l

5 answers

It seems like your message got cut off. However, I can help guide you on how to interpret a graph related to temperature and gas particles.

If the graph shows the relationship between temperature and the speed of gas particles, then the best explanation would be:

"As temperature rises, gas particles are moving faster, which increases the kinetic energy of the particles."

If you can provide more details or a more complete statement, I can help you formulate a better response!

mother finds her daughter’s mug of hot cocoa on a table an hour after she had been drinking it. As the mother pours out the cocoa, she sees brown solids in the bottom of the mug. How can this be explained?(1 point)
Responses

The cocoa was mixed with hot water, but some cocoa settled as it cooled because the solubility went up.
The cocoa was mixed with hot water, but some cocoa settled as it cooled because the solubility went up.

This would only happen if too much cocoa powder was added in the first place, because the solubility should not change.
This would only happen if too much cocoa powder was added in the first place, because the solubility should not change.

The cocoa was mixed with hot water, but some cocoa settled as it cooled because the solubility went down.
The cocoa was mixed with hot water, but some cocoa settled as it cooled because the solubility went down.

All dissolved substances will come out of solution over time. If the mother waits long enough, then all of the powder will appear at the bottom of the mug.

The best explanation for what happened to the hot cocoa is:

The cocoa was mixed with hot water, but some cocoa settled as it cooled because the solubility went down.

Hot liquids can hold more solute (like cocoa powder) than cold liquids. As the cocoa cools, its solubility decreases, causing some of the cocoa to settle at the bottom of the mug as a solid.

After which action would the concentration of a solution remain constant?(1 point)
Responses

adding solute to the solution
adding water to the solution

evaporating water from the container

removing solution from the container

The action after which the concentration of a solution would remain constant is:

adding solute to the solution.

When you add solute to a solution, the concentration stays constant if the amount of solvent stays the same or if you add enough solvent to maintain the same ratio of solute to solvent. In general, the only action from the provided options that wouldn't change the concentration would be adding an appropriate amount of solute that keeps the concentration unchanged relative to the existing volume.

However, if none of the options provided perfectly describe a scenario where concentration truly remains constant (like adding exactly the same amount of solute as the amount already present), you might consider this response as a more context-dependent choice. In general terms, adding solute increases concentration unless balanced precisely.

None of the other listed actions would result in a constant concentration; adding water would dilute the solution, evaporating water would concentrate the solution, and removing solution would increase concentration.