Express the answers to the following calculations in scientific notation: (a) 0.0095 1 (8.5 3 1023 ) (b) 653 4 (5.75 3 1028 ) (c) 850,000 2 (9.0 3 105 ) (d) (3.6 3 1024 ) 3 (3.6 3 106 )
October 27, 2017 – Lecture 18 Resonance Structures: Lewis Structures O 3an be drawn in 2 ways These are tow different reasonable Lewis Structures for the same molecule, namely resonance structures Neither structure depicts O a3curately, because in reality the O-O bonds are identical in length and energy Species that can be depicted by more than one valid Lewis structure is best represented as a resonance hybrid Electron Delocalization (Fyi) Lewis structure depict electrons as localized either on an individual atom (lone pairs) or in a bond between two atoms (shared pair) In a resonance hybrid, electrons are delocalized: their density is “spread” over a few adjacent atoms Dotted li
