BIOL CH 20: BIOL CH CHEM 20A

Discover Rutherford's pivotal Gold Foil Experiment and its impact on atomic theory. Unveil the discrepancies with the Plum Pudding Model. Grasp the birth of the nuclear atom model through unexpected alpha particle deflections.

This video shows you how to balance equations from the reaction of lead(II) sulfide with hydrochloric acid to ammonia's interaction with oxygen. Understand the nuances of atom balancing and grasp the precise stoichiometric relationships.

Learn the process of determining the density of a rectangular metal bar using its measurements. Understand how volume and mass play a crucial role in the calculation, and the importance of representing results with the correct number of significant figures

This video explores the concept of structural levels (primary, secondary, tertiary, and quaternary) in biomolecules, focusing on double-stranded DNA, tRNA, and mRNA to understand the diverse ways these molecules exhibit these structural layers.

This video elucidates the method to sketch Lewis structures for the radical species ClF? and BrO?. Highlighting the distinguishing feature of an unpaired electron, we illustrate the bond arrangements and lone pairs that define these unique chemical entities.

We categorize elements into representative, transition, inner-transition, and noble gases based on their positions in the periodic table and general characteristics, without revealing specific element classifications.