Table of contents

1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

1. A Review of General Chemistry

Intro to Organic Chemistry

Organic Chemistry

1. A Review of General Chemistry

Intro to Organic Chemistry

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Multiple Choice

In the context of organic chemistry, how does relative dating help determine the age of a fossil?

By comparing the fossil's position in sedimentary layers to known ages of other layers.

By using the fossil's DNA sequence to estimate its age.

By analyzing the fossil's chemical composition to match it with a specific era.

By measuring the radioactive decay of carbon isotopes within the fossil.

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Verified step by step guidance

Understand that relative dating in geology and paleontology involves determining the age of a fossil by comparing its position within sedimentary rock layers to the positions of other fossils or rock layers with known ages.

Recognize that sedimentary layers, or strata, are deposited over time, with the oldest layers typically at the bottom and the youngest at the top, following the principle of superposition.

Identify that relative dating does not provide an exact age in years but rather an estimate of whether a fossil is older or younger than other fossils or rock layers.

Consider that relative dating can be complemented by other methods, such as radiometric dating, which involves measuring the decay of radioactive isotopes to determine an absolute age.

Note that the other options mentioned, such as using DNA sequences or chemical composition, are not typically methods used in relative dating but may be used in other contexts to study fossils.