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

Which method estimates the age of a fossil by comparing it to another fossil?

Relative dating

Uranium-lead dating

Potassium-argon dating

Radiocarbon dating

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Verified step by step guidance

Understand the concept of relative dating: Relative dating is a method used to determine the age of a fossil by comparing it to other fossils in different layers of rock. It does not provide an exact age but rather an estimate based on the position of the fossil in the geological strata.

Identify the principle of superposition: In relative dating, the principle of superposition is used, which states that in undisturbed layers of rock, the oldest layers are at the bottom and the youngest are at the top. This helps in estimating the relative age of fossils.

Compare fossils in different strata: By examining the position of fossils within the rock layers, scientists can infer which fossils are older or younger relative to each other. This comparison is crucial in relative dating.

Differentiate from absolute dating methods: Unlike relative dating, methods like Uranium-lead dating, Potassium-argon dating, and Radiocarbon dating provide an absolute age of a fossil by measuring the decay of radioactive isotopes. These methods are not based on comparison but on quantifiable data.

Apply relative dating in paleontology: Relative dating is widely used in paleontology to construct a timeline of life on Earth by comparing fossils from different geological periods, helping to understand the evolution and extinction of species.