Chem 1040 QUIZ 5 11/28/16
DUE December 5th @ 12:20 pm 1127N
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Problem 1. (3 points)
Draw the Lewis structure for NO2. Include all necessary bonds, lone pairs of
electrons (or single unshared electrons if appropriate)
An element is a substance that consists of iden:cal atoms.
There are 118 known elements, 98 occur in nature, the others have been made by
chemists and physicists.
Wednesday September 17th 2014
Drawing a Lewis Structure
1. Determine the number of valence electrons in the molecule. For a caGon, subtract
Heat of Reac(on
Wednesday, October 15th 2014
Limi(ng reagent: The reagent that is used up rst in a chemical reac(on.
Consider this reac(on of N2 and
Department of Chemistry Brooklyn College
Chem 1040; Fall 2016
Midterm Exam II
SCORED POINTS: _
1. Select your lab instructor and/or section you are registered for:
Berezovska (MEAB) Lee (MEBB) Desamero (MECB) Medialdea (MEDB)