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 always exist as molecules, while compounds always exist as ions.

Elements consist of only one type of atom, while compounds consist of two or more different types of atoms chemically bonded together.

Compounds are mixtures of elements, while elements are pure substances.

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

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Verified step by step guidance

Step 1: 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.

Step 2: Understand the definition of a compound. A compound is a pure substance formed when two or more different types of atoms chemically bond together in fixed proportions. For example, water (H\_2O) is a compound made of hydrogen and oxygen atoms bonded together.

Step 3: Recognize that elements can exist as single atoms or molecules (like O\_2), but the key point is that they contain only one type of atom, whereas compounds always contain at least two different types of atoms bonded chemically.

Step 4: Note that compounds are not mixtures; they are chemically combined substances with unique properties different from their constituent elements.

Step 5: Recall that elements cannot be broken down into simpler substances by chemical means, while compounds can be decomposed into their constituent elements through chemical reactions.