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 statements is true regarding the classification of matter?

A mixture can be separated into its components by physical means.

A compound is a pure substance that cannot be broken down into simpler substances.

An element is a mixture of two or more substances.

A homogeneous mixture has visibly distinguishable parts.

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Verified step by step guidance

Understand the definitions of key terms: A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means. A compound is a pure substance composed of two or more elements chemically combined in a fixed ratio. An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Evaluate the statement: 'A mixture can be separated into its components by physical means.' This is true because mixtures, such as saltwater, can be separated by physical processes like evaporation or filtration.

Evaluate the statement: 'A compound is a pure substance that cannot be broken down into simpler substances.' This is false because compounds can be broken down into their constituent elements by chemical reactions.

Evaluate the statement: 'An element is a mixture of two or more substances.' This is false because an element is a pure substance consisting of only one type of atom.

Evaluate the statement: 'A homogeneous mixture has visibly distinguishable parts.' This is false because a homogeneous mixture, like a solution, has a uniform composition throughout and does not have visibly distinguishable parts.