CHEM 129: Basic Principles of Chemistry 129

Discover how to calculate the nutritional energy in a bag of chips, and learn the science behind converting excess energy into body fat.

Discover Lewis structures for various molecular formulas, including N2, HCN, CO2, C3H6, and more. Explore their chemical bonding and structural arrangements.

Delve into the journey of scientific ideas as we discuss how a hypothesis can evolve into a theory, and whether a theory can ever become a law. Uncover the distinctions and connections between these fundamental elements of scientific understanding in this illuminating video.

This discussion revolves around the classification of chemical bonds as ionic, polar covalent, or covalent based on the electronegativity difference between the atoms involved. The general criteria for this classification are explained: a difference greater than 1.7 indicates an ionic bond, between 0.5 and 1.7 signifies a polar covalent bond, and less than 0.5 designates a covalent bond. It then applies these criteria to four specific examples, including the CC bond in ethane (H?CCH?), the KI bo

Learn how to find the density of silver using weight and water displacement. A step-by-step guide to a common laboratory technique.

Explore the fascinating reactions of isopentyl bromide with a variety of reagents and uncover the expected products in each scenario.