Dissolving Processes and Solutions

Dissolving Processes and Solutions

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

Dr. English introduces solution chemistry, focusing on classifying solutions and the rate of dissolving. The video covers basic solution types, including solid-liquid, liquid-liquid, solid-solid, gas-liquid, and gas-gas solutions. It explains saturated, unsaturated, and supersaturated solutions, emphasizing the importance of temperature and pressure. Factors affecting the rate of dissolving, such as temperature, surface area, and stirring, are discussed. The video also explores how gases dissolve in liquids, highlighting the effects of temperature and pressure on gas solubility.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of a gas-liquid solution?

Carbon dioxide in water

Food coloring in water

Sodium chloride in water

Gold mixed with silver

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary gas in the air we breathe?

Helium

Nitrogen

Carbon dioxide

Oxygen

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a characteristic of a saturated solution?

It can dissolve more solute at the same temperature.

It is in dynamic equilibrium with excess solute.

It is very unstable.

It contains less solute than it can hold.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when a single crystal is added to a supersaturated solution?

The solution becomes more stable.

The solution remains unchanged.

Immediate precipitation occurs.

The crystal dissolves completely.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of solution is in dynamic equilibrium with excess solute?

Unsaturated solution

Supersaturated solution

Saturated solution

Dilute solution

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does temperature affect the rate of dissolving solids in liquids?

Lower temperatures increase the rate of dissolving.

Higher temperatures increase the rate of dissolving.

Temperature has no effect on dissolving rate.

Higher temperatures slow down the dissolving process.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does powdered sugar dissolve faster than a sugar cube?

It is less dense.

It has a higher temperature.

It has a larger surface area.

It is stirred more frequently.

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