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 is not considered to be a greenhouse gas?

Oxygen (O2)

Methane (CH4)

Carbon dioxide (CO2)

Nitrous oxide (N2O)

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Verified step by step guidance

Understand the concept of greenhouse gases: Greenhouse gases are atmospheric gases that trap heat from the sun, keeping the Earth's surface warmer than it would be otherwise. They are crucial for maintaining the Earth's temperature but can contribute to global warming when present in excess.

Identify common greenhouse gases: The most well-known greenhouse gases include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and water vapor (H2O). These gases are effective at absorbing infrared radiation and re-emitting it, thus warming the atmosphere.

Consider the role of oxygen (O2): Oxygen is a major component of the Earth's atmosphere, making up about 21% of it. However, it does not have the same heat-trapping properties as greenhouse gases because it does not absorb infrared radiation effectively.

Compare the gases listed in the problem: Methane (CH4), carbon dioxide (CO2), and nitrous oxide (N2O) are all known greenhouse gases. They contribute to the greenhouse effect by trapping heat in the atmosphere.

Conclude which gas is not a greenhouse gas: Based on the properties of the gases, oxygen (O2) is not considered a greenhouse gas because it does not significantly absorb infrared radiation and contribute to the greenhouse effect.