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 elements and compounds?

Elements and compounds both contain only one type of molecule.

Compounds consist of only one type of atom, while elements are made of two or more different atoms.

Elements can be separated into simpler substances by chemical means, while compounds cannot.

Elements consist of only one type of atom, while compounds are substances made of two or more different elements chemically combined.

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Verified step by step guidance

Understand the definition of an element: An element is a pure substance that consists of only one type of atom. For example, oxygen (O) is an element made up entirely of oxygen atoms.

Understand the definition of a compound: A compound is a pure substance formed when two or more different elements are chemically combined in fixed proportions. For example, water (H\_2O) is a compound made of hydrogen and oxygen atoms bonded together.

Recognize that elements cannot be broken down into simpler substances by chemical means because they are the simplest form of matter with unique atoms.

Know that compounds can be broken down into their constituent elements by chemical reactions, such as electrolysis or decomposition.

Compare the two: Elements contain only one type of atom, while compounds contain two or more different types of atoms chemically bonded. This distinction is key to understanding their differences.