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 statement best explains how to distinguish between an element and a compound?

Compounds consist of only one type of atom, while elements contain two or more types of atoms.

Elements are always found as molecules, while compounds are always found as atoms.

Both elements and compounds can be separated into simpler substances by physical means.

An element consists of only one type of atom, while a compound contains two or more different elements chemically bonded together.

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Verified step by step guidance

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

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

Recognize that elements cannot be broken down into simpler substances by chemical means, while compounds can be broken down into their constituent elements through chemical reactions.

Note that physical separation methods (like filtration or distillation) cannot separate elements or compounds into simpler substances; chemical methods are required for compounds.

Therefore, the key distinction is that an element contains only one type of atom, whereas a compound contains two or more different elements chemically bonded together.