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Day3Lecturenotes

Day3Lecturenotes - 1 st General Body Meeting Thursday...

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Interested In: Getting Involved in Greek Life? Are you a science major like: CHEM, BIO, PHYS, ENGR, or CS? Then you should join ΑΧΣ ! Cornell’s only professional, co-ed , science fraternity. Go to Facebook and search Alpha Chi Sigma Rush Fall ’11 for more information or contact Gokul Govindaraju at [email protected] Rush Week will be held as follows: Tuesday 9/6 Taco Night - 6-8 PM Wednesday 9/7 Pizza with Professors - 6-8 PM Thursday 9/8 Games Night - 6-8 PM Friday 9/9 Ivy Room Lunch and Induction - 11AM-1PM and 6:30PM HW help? Meeting and Greeting Cornell Chemistry Faculty? Cheap Housing?
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INTERESTED IN BECOMING A MENTOR TO THE YOUTH IN NYC? Want to give back to the community while building leadership and communication skills? Want a great résumé booster with a low time-commitment? Then come join the New York City Service Initiative!
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Unformatted text preview: 1 st General Body Meeting: Thursday, September 1 st 5:00pm in Rockefeller 132 Any Questions? Contact Alex Gonzales at [email protected] Review of Lecture 2: Conservation of mass in chemical reactions (not nuclear physics!) Compounds have constant composition Law of Multiple Proportions Atomic Theory: Elements come in units of atoms Compounds are formed when 2 or more atoms join together Dalton assigned carbon an atomic weight of 6. He also assumed that the simplest binary compound of carbon and hydrogen had one atom of each in it. We know that carbon atoms weigh 12 times as much as hydrogen atoms. Which gas that we know today did Dalton use as his representative of the simplest binary compound of carbon and hydrogen? A. Methane (CH 4 ) B. Ethane (C 2 H 6 ) C. Ethylene (C 2 H 4 ) D. Acetylene ( C 2 H 2 ) E. Benzene ( C 6 H 6 )...
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