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

2. Atoms & Elements

Atomic Theory

General Chemistry

2. Atoms & Elements

Atomic Theory

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Multiple Choice

Which of the following is true about scientific theories in the context of atomic theory?

Theories are well-substantiated explanations that can be modified with new evidence.

Theories are the same as hypotheses and require no further testing.

Theories are unchangeable and remain constant over time.

Theories are guesses that lack experimental support.

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Verified step by step guidance

Understand the definition of a scientific theory: A scientific theory is a well-substantiated explanation of some aspect of the natural world that is based on a body of evidence and has been repeatedly confirmed through observation and experimentation.

Differentiate between a theory and a hypothesis: A hypothesis is a proposed explanation for a phenomenon that can be tested, while a theory is a comprehensive explanation supported by a large body of evidence.

Recognize that scientific theories are not static: Theories can be modified or refined as new evidence becomes available, reflecting the dynamic nature of scientific understanding.

Identify the role of experimental support: Theories are supported by extensive experimental evidence, distinguishing them from mere guesses or speculations.

Apply this understanding to atomic theory: Atomic theory, like other scientific theories, is a well-substantiated explanation that has evolved over time with new discoveries and evidence, such as the development from Dalton's atomic theory to the modern quantum mechanical model.