PreparED Study Materials
CHEM 7252: Chemical Principles I
School: Truman State University
Number of Notes and Study Guides Available: 0
Videos
Homogeneous vs Heterogeneous Mixtures: Examples & Classification Expla
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the distinction between homogeneous and heterogeneous mixtures. Through real-world examples like baby oil, chocolate chip cookies, and wine, understand their uniformity, phases, and how components are distributed.
Drawing Open-Chain Structures: A Visual Guide to Four Sugars
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Learn how to draw open-chain structures for various sugars, from ketotetrose to amino sugars. This video offers visual demonstrations of ketopentose, deoxyaldohexose, and more, highlighting key molecular differences.
Ethylene Glycol & Freezing Point in Antifreeze
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
We explore the impact of increasing the concentration of ethylene glycol in an antifreeze mixture, explaining the resulting effect on the freezing point of the solution by examining its interaction with water molecules.
Balancing Equations: From Lead Sulfide to Ammonia Reactions
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
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.
Why geometric isomerism is not possible in alkynes
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This video provides insights into the concept of geometric isomerism in organic chemistry and explains why alkynes, which contain carbon-carbon triple bonds and adopt a linear structure, cannot exhibit this form of isomerism, unlike alkenes with double bonds that restrict rotation.
Electronegativity & Acid Strength: Decoding Acid Formulas
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This video discusses how the electronegativity of attached groups affects the strength of acids. Comparing pairs such as Chloroacetic vs Fluoroacetic and Acetic vs Nitroacetic acids, we highlight which is the stronger acid in each pair and why.















