Question

Use the graph to answer the question. Which statement is the best explanation for the graph? (1 point) Responses As temperature rises, the space between liquid particles increases, allowing more room for gas particles. As temperature rises, the space between liquid particles increases, allowing more room for gas particles. As temperature rises, gas particles are moving faster and may leave the solution. As temperature rises, gas particles are moving faster and may leave the solution. As temperature rises, the space between liquid particles decreases, leaving less room for gas particles. As temperature rises, the space between liquid particles decreases, leaving less room for gas particles. As temperature rises, gas particles are moving faster and are more likely to enter the solution.

Answer 1

Based on the context of the question regarding the relationship between temperature, gas particles, and liquid particles, the best explanation for the graph is:

"As temperature rises, gas particles are moving faster and may leave the solution."

This statement accurately reflects the general principle that increased temperature causes gas particles to gain kinetic energy, making them more likely to escape from the liquid phase into the gas phase.

Answer 2

A 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 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. 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 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. 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.

Answer 3

The best explanation for the situation described is:

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

As the temperature of the hot cocoa decreases, the solubility of the cocoa powder in water decreases as well. This means that at lower temperatures, the liquid can hold less cocoa in solution, leading to some of it settling at the bottom of the mug.