Intermolecular Forces and Molecules - Interactive Lecture Demonstration A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines.


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Naslov Intermolecular Forces and Molecules - Interactive Lecture Demonstration
Opis This Interactive Lecture Demonstration Guide has the following goals. Students will be able to: • Use VSEPR theory to construct common molecules; • Sketch electron density and identify partial charges based on molecule geometry and electronegativity; • Distinguish between bond and molecule dipoles; • Classify molecules as polar or non-polar; • Compare and contrast permanent and induced dipoles; • Identify hydrogen-bonding, and discuss its origin in terms of molecule geometry and electronegativity; • Explain properties, such as boiling or melting point, by considering different intermolecular forces; • Relate the relative strength of intermolecular forces with melting point or boiling point data, and with particle-level representations of substances at different temperatures; • Describe the dynamic particle motion in a liquid, including the arrangement and motion of molecules accompanying hydrogen-bonding and ion-dipole interactions; • Explain ion-pairing at the particle-level, and describe how this affects colligative properties.
Subjekt Hemija
Nivo Osnovni studij - Uvod
Tip Demonstracija
Trajanje 60 minuta
Uključen odgovor Ne
Jezik Engleski
Ključne riječi Electrostatic potential, VSEPR, dipoles, electronegativity, intermolecular forces, ion-pairing, molecule geometry, partial charges, phase changes, polar and non-polar molecules
Simulacije Polarnost molekule (HTML5), Polarnost molekule, Oblici molekule (HTML5), Oblici molekule, Agregatna stanja (HTML5), Agregatna stanja, Agregatna stanja: osnovni nivo (HTML5), Agregatna stanja: osnovni nivo, Rastvori šećera i soli


Autori: Ted Clark, Julia Chamberlain
Kontakt e-mail phethelp@colorado.edu
Škola / Organizacija PhET
Poslato 11/5/14
Obnovljeno 7/26/17