Question 1

Which of the following best describes the term 'solubility' as shown in the first image?

Accepted Answer

The maximum amount of a solute that can dissolve in a solvent at a specific temperature.

Question 2

In the second image, a red solid is added to a clear liquid and forms a homogeneous orange solution. Which process is being demonstrated?

Accepted Answer

Dissolution

Question 3

Based on the third image, which gas is the major component of Earth's atmosphere?

Accepted Answer

Nitrogen ($$N_2)$$

Question 4

The fourth image shows sugar molecules surrounded by water molecules. What type of compound is sugar in this context?

Accepted Answer

Covalent compound

Question 5

In the fifth image, what is happening to the $$KCl$$ crystal when it is added to water?

Accepted Answer

The $$K^+$$ and $$Cl^-$$ ions dissociate and are surrounded by water molecules.

Question 6

Refer to the sixth image. Which of the following is a strong electrolyte?

Accepted Answer

Sodium chloride

Question 7

The seventh image shows three beakers with different solutions and light bulbs. Which solution conducts electricity the best?

Accepted Answer

KCl solution

Question 8

In the eighth image, salt is being added to water. What will happen if too much salt is added?

Accepted Answer

The solution will become saturated and excess salt will settle at the bottom.

Question 9

Refer to the ninth image (solubility curves). Which compound's solubility decreases as temperature increases?

Accepted Answer

NH$$_3$$

Question 10

The tenth image shows a can of soda with $$CO_2$$ gas escaping. What happens to the solubility of $$CO_2 in $$the soda when the can is opened?

Accepted Answer

The solubility of $$CO_2$$ decreases as pressure is released.

Question 11

In the eleventh image, which glass represents a miscible liquid pair?

Accepted Answer

Bottom left (miscible)

Question 12

The twelfth image shows the process of forming a supersaturated solution. What happens if a seed crystal is added to a supersaturated solution?

Accepted Answer

The excess solute rapidly precipitates out.

Question 13

Based on the solubility curves (thirteenth image), which compound is most soluble at 80°C?

Accepted Answer

KI

Solutions, Solubility, and Colligative Properties: General Chemistry Study Notes

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