PreparED Study Materials
CHEM 121: General Chemistry I
School: University of North Dakota
Number of Notes and Study Guides Available: 6
Notes
Chem121 week 5: lewis structures (Chemistry)
CHEM 121
University of North Dakota
1 pages | Fall 2016
Study Guides
Chemistry study guide 10/17/2016 (Chemistry)
CHEM 121
University of North Dakota
5 pages | Fall 2016
Videos
Lone Pair vs. Bonding Pair Electrons: Atomic Insights Unveiled
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Explore the atomic world and the crucial distinctions between lone pair and bonding pair electrons in this insightful video. Delve into the fundamental aspects of atomic structure, electron orbitals, and their roles in chemical bonding, reactivity, and molecule formation.
Unraveling Hydrocarbon Structures: Decoding Degrees of Unsaturation
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Explore the concept of the degree of unsaturation in hydrocarbons. Understand its importance in revealing double bonds, triple bonds, or rings. Learn through examples like limonene, squalene, and lycopene.
Hypothesis to Theory: The Evolution of Scientific Understanding
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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.
Strong vs. Weak Acids: Ionization Differences in Water
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Uncover the distinct behaviors of hydrochloric acid and acetic acid in water. Learn about the complete ionization of strong acids and the partial ionization of weak ones, emphasizing the differentiation in proton donation.
Balancing Equations: From Lead Sulfide to Ammonia Reactions
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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.
Hydrogen Peroxide Molecule Classification
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This discussion explores the nature of hydrogen peroxide as a compound composed of hydrogen and oxygen atoms and categorizes it as either a homoatomic or heteroatomic molecule.