Chemistry 1211: Lecture 1 Notes
Chemistry 1211: Lecture 1 Notes 1211
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This 3 page Class Notes was uploaded by Caroline Holt on Sunday August 14, 2016. The Class Notes belongs to 1211 at University of Georgia taught by Jay Agarwal in Fall 2016. Since its upload, it has received 44 views. For similar materials see General Chemistry 1 (CHEM 1211) in Chemistry at University of Georgia.
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Date Created: 08/14/16
Chemistry 1211: Agarwal Lecture 1 Notes 1 States of Matter Solid Liquid Gas Definite shape Take the shape of the No definite shape Definite volume container Expands to fill container Definite volume Little reorganization, More movement, Extended movement movement reorganization Rotation of molecules Ordered Rearrangement of No interaction between No rearrangement molecules molecules all of these are under standard temperature, pressure When temperature and pressure change, the states of matter change 2 Water: H O 2 Covalently bonded Oxygen is the most electronegative element in the compound and when water compounds are next to each other, the hydrogens are attracted to the oxygens Some liquid molecules will evaporate at lower temperatures Water evaporates at all temperatures but most evaporates at the boiling point Adding salt to the water raises the boiling point because NaCl has stronger magnetic forces to overcome Water phase change points at different pressures, temperatures 3 Chemical vs. Physical Change Chemical: alter chemical compositions Physical: chemical composition DOES NOT CHANGE (phase changes)
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