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 terms are used to identify pure substances in chemistry?

Homogeneous and heterogeneous

Mixture and solution

Solvent and solute

Element and compound

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Verified step by step guidance

Step 1: Understand the definition of a pure substance in chemistry. A pure substance has a fixed composition and distinct properties, and it cannot be separated into other substances by physical means.

Step 2: Recognize that pure substances are classified as either elements or compounds. Elements consist of only one type of atom, while compounds consist of two or more elements chemically combined in a fixed ratio.

Step 3: Review the other terms given: 'homogeneous and heterogeneous' describe types of mixtures based on uniformity; 'mixture and solution' refer to combinations of substances that can be separated physically; 'solvent and solute' describe components of a solution, not pure substances.

Step 4: Conclude that the terms 'element and compound' correctly identify pure substances because they represent substances with fixed compositions and unique chemical identities.

Step 5: Summarize that identifying pure substances involves recognizing that they are either elements or compounds, distinct from mixtures or solutions.