Lecture 11 - Topics for the day Administrative stuff Darwin...

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Topics for the day Administrative stuff Darwin day Exam One Results Problem questions (graded iclicker questions) Periodic trends Electron afFnity Electronegativity Ionic radii Chemical Bonding Administrative stuff ALEKS First ALEKS objective extension till Monday 10 am. You can’t access a topic in a closed objective until ±nals time unless it is a prerequisite for a topic in an open objective. Each ALEKS will be assigned on Monday and due two weeks later. Second ALEKS objective not ±nalized yet, but start if you want to. Quest homework is only given on topics not covered by ALEKS (plus sample exams). It will not be given every week. Recall the ±nal homework score (10% of grade) is combination of ALEKS and Quest (dropping the worst two) I mis-spoke. The syllabus says: “Your ALEKS contribution to the homework grade will be the higher of two things, either the average of your ALEKS percentage of topics learned for each objective, or your ±nal percentage of topics learned over the entire semester I will count 70% as equal to full points for the ±rst ALEKS objective. From now on, you need to get 100% to get full points. Sorry. 1 2 3
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Happy Darwin Day! 1018 US citizens surveyed 1018 US citizens surveyed UT Darwin Day events on Saturday 0 10 20 30 40 50 60 0 10 20 30 40 50 60 70 80 90 % score Number of students C Exam One! Class Average 79% 4 5 6
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Quantum is hard. The concepts are new. You did good. You get to drop your worst exam HW and participation will nudge your grade up Hard work and study will help even more! 14 students made 100% ! 33% made an A or A ! Too easy?? I say you guys are great and I teach brilliantly! F 14% D 12% C 13% B 28% A 33% 1/3 of the questions, worth 1/3 of the total were correct for 88% of the class. Four questions, worth 1/6 of the total were wrong for 30% of the class. Let’s see how many of you went and looked up or ±gured out the right answers after the test. .. A. density of 2.07 g/ml B. melts at 119˚C C. burns in air D. dissolves in carbon disulFde iClicker Time Which of the following is a chemical property of sulfur? GRADED Chemical properties are observable only during reaction Phase changes don’t change the chemical composition. Molten sulfur is still sulfur. Properties like boiling point, density, vapor pressure are physical not chemical properties.
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This note was uploaded on 03/06/2010 for the course CHEM 52375 taught by Professor Shear during the Spring '10 term at University of Texas-Tyler.

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Lecture 11 - Topics for the day Administrative stuff Darwin...

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