CHEM 151: Introductory Chemistry

School: University of Illinois

Number of Notes and Study Guides Available: 0

Videos

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Electrons in outer shell of: Potassium, Calcium, Aluminum

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This video explains the importance of the number of valence electrons in an element's chemical behavior and demonstrates how to determine the valence electrons for potassium, calcium, and aluminum based on their positions in the periodic table. Valence electrons dictate an element's reactivity with other elements, making this knowledge essential for understanding chemical reactions.

Classifying the Boiling of Water: Physical or Chemical Change? Justify

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This video tackles the classification of boiling water as either a physical or chemical change, examining the provided options. We conclude that boiling is a physical change, as the water's chemical composition remains the same during the transition from liquid to gas.

Crafting Ionic and Net Ionic Equations: Step-by-Step Guide with Exampl

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Discover how to craft balanced, complete ionic, and net ionic equations for various chemical reactions. Learn the significance of aqueous ions and solid state indicators in these equations.

Classify: (a) Mixture (b) Element (c) Mixture (d) Compound

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In this video, we classify substances as elements, compounds, or mixtures, with air and soy sauce as mixtures, iron as an element, and table salt as a compound.