PreparED Study Materials
CH 221: General Chemistry I
School: Portland State University
Number of Notes and Study Guides Available: 10
Notes
Study Guides
Chem 221 midterm #1 study outline (Engineering)
CH 221
Portland State University
5 pages | Fall 2015
Videos
Chromium Oxides: Acidity Comparison in Water
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Compare the acidity of chromium trioxide (CrO?) and chromium (II) oxide (CrO) in water. Chromium trioxide forms strong chromic acid increasing hydronium ions, while chromium (II) oxide has weaker oxidizing properties, resulting in a less acidic solution.
The steps in the electron transport chain from NADH to oxygen
Want To Learn More? To watch the entire video and ALL of the videos in the series:
The electron transport chain (ETC) is a critical process in cellular respiration and photosynthesis, involving the transfer of electrons and protons through a series of protein complexes and molecules to create an electrochemical gradient, ultimately producing ATP with molecular oxygen as the final electron acceptor.
Precipitation Reactions Explained: From Solution to Solid Formation
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Unravel the chemistry behind precipitation reactions and the creation of insoluble salts. Learn how aqueous ions interact to form solid precipitates, illustrated with examples like silver nitrate and sodium chloride. Understand their significance in fields from water treatment to qualitative analysis.
Physical vs. Chemical: Chlorine Reactions & Magnetism
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the differences between physical and chemical properties in substances. Learn some fundamentals of chemistry and understand how substances interact and change.
What is the expected ground-state electron configuration for Te²??
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Join us in this illuminating video as we unravel the expected ground-state electron configuration for Te²?. We dive into the world of chemistry to explain the electron structure of this fascinating ion. Whether you're a student, a chemistry enthusiast, or simply curious about the periodic table, this video provides a clear and comprehensive breakdown of the electron configuration for Te²?. Discover the secrets of electron arrangement and explore the intriguing properties of tellurium in its doub
CO?: Linear & Nonpolar with Temp Dipole Moments Explained!
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Uncover the nuances of the CO? molecule's polarity and its electron dynamics. Understand how bending and stretching motions influence its electron density. Grasp the analogy of CO? to a jumping rope, highlighting its overall nonpolar nature.