Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

1. Intro to General Chemistry

Physical & Chemical Changes

General Chemistry

1. Intro to General Chemistry

Physical & Chemical Changes

Previous problemNext problem

Struggling with General Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

What happens when you stir a spoonful of sugar into hot water?

The sugar dissolves more quickly due to increased solubility at higher temperatures.

The sugar forms a precipitate at the bottom of the container.

The sugar dissolves more slowly due to decreased solubility at higher temperatures.

The sugar remains undissolved because solubility decreases with temperature.

Previous problemNext problem

Verified step by step guidance

Identify the process: When sugar is added to water, it undergoes a process called dissolution, where sugar molecules disperse in the water, forming a solution.

Understand the effect of temperature on solubility: Generally, the solubility of solids like sugar increases with an increase in temperature. This means that sugar will dissolve more readily in hot water compared to cold water.

Consider the role of stirring: Stirring helps distribute the sugar molecules throughout the water, increasing the interaction between sugar and water molecules, which speeds up the dissolution process.

Evaluate the options: Given the understanding that solubility increases with temperature, the correct statement is that sugar dissolves more quickly in hot water due to increased solubility.

Conclude the reasoning: The increased kinetic energy at higher temperatures allows water molecules to interact more effectively with sugar molecules, facilitating faster dissolution.