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

Classification of Matter

General Chemistry

1. Intro to General Chemistry

Classification of Matter

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Multiple Choice

Which of the following best describes the difference between a heterogeneous mixture and a homogeneous mixture?

A homogeneous mixture always contains water as a solvent, while a heterogeneous mixture does not.

A heterogeneous mixture contains only one type of substance, while a homogeneous mixture contains two or more.

A heterogeneous mixture has visibly different components or phases, while a homogeneous mixture has a uniform composition throughout.

A homogeneous mixture can be separated by filtration, while a heterogeneous mixture cannot.

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Verified step by step guidance

Step 1: Understand the definitions of mixtures. A mixture is a combination of two or more substances where each substance retains its own chemical identity.

Step 2: Define a homogeneous mixture. It is a mixture that has a uniform composition and appearance throughout, meaning you cannot distinguish the different components with the naked eye.

Step 3: Define a heterogeneous mixture. It is a mixture where the different components are visibly distinct or exist in different phases, so you can see the separate parts.

Step 4: Analyze the given options by comparing them to these definitions. For example, the presence of water as a solvent is not a requirement for homogeneous mixtures, and filtration is typically used to separate heterogeneous mixtures, not homogeneous ones.

Step 5: Conclude that the best description is that a heterogeneous mixture has visibly different components or phases, while a homogeneous mixture has a uniform composition throughout.