Review_Exam-1 - Exam 1, Tuesday September 20th, 8:30 10:00...

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Be sure to bring the following: • Stony Brook ID card • 2 or more #2 pencils and a good eraser Nonprogrammable scientific calculator with spare batteries DO NOT BRING any of the following: • Cell phone, beeper, iPod, or other electronic device • Textbook, notes, or any aids to taking the exam Violations may result in a course grade of F and a report to the Academic Judiciary . No one will be permitted to leave the exam before 9:15 PM. Exam 1, Tuesday September 20 th , 8:30 – 10:00 PM Solar ID Room 000000000 – 107682767 Javits 100 Main Floor 107682768 – 107935951 Javits 100 Balcony 107935952 – 108066221 Earth & Space Science 001 108066222 – 108113088 Javits 102 108113089 – 108163807 Javits 110 108163808 – 108214031 Harriman 137 108214032 – 108250954 Engineering 143 108250955 – 108282236 Engineering 145 108282237 – 108322279 Light Engineering 102 108322280 – 108334405 Javits 103 108334406 – 108364105 Javits 109 108364106 – 999999999 Humanities 1003 Room Assignments for Exam 1 Tuesday September 20 th
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Info for Exam #1 No programmable or phone calculators Bring your ID and pencils You are given a periodic table All multiple choice. 25 questions + 1 bonus (4 points each) Some conceptual, some numerical A few have multiple steps and take time Point value same regardless of difficulty! Budget your time carefully Includes everything up to and including lecture #8 Review lecture notes PRACTICE problem solving Do not work too hard monday PM Common strategies •Identify what exactly is being asked •Identify what information is known •What is the proper equation or strategy to connect these? •Try to estimate the answer •Do the detailed calculations •INCLUDE UNITS •Do the units of your answer match what was being asked? (grams for a mass, etc) •Check to make sure that your answer agrees with your estimate and that it makes sense •If not, double check your work
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Roy A. Lacey, Stony Brook University; Che 131, Spring 2011 5 Atoms Elements The electrons are situated at comparatively large distances (compared to nuclear dimensions) around the nucleus The fundamental structural blocks of substances are the atoms 6 Roy A. Lacey, Stony Brook University; Che 131, Fall 2011 Classification of Matter Compounds Elements Substances with one type of atom Substances with two or more different atoms chemically combined Mixtures Basic building block For all substances
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7 Roy A. Lacey, Stony Brook University; Che 131, Fall 2011 Chemical & Physical Change A Physical changes does not cause a substance to become a fundamentally different substance Phase changes are physical Mixing together substances is physical Cutting, tearing, shattering, and grinding are physical. A Chemical change causes a substance to change into something entirely new Precipitates forming after mixing substances - chemical Rotting, burning, cooking, and rusting are chemical. Examples Examples 8 Roy A. Lacey, Stony Brook University; Che 131, Fall 2011 Solid Liquid Gas Melting Freezing Deposition Condensation Vaporization Sublimation Energy of system Energy Changes Accompanying Phase Changes
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9 Roy A. Lacey, Stony Brook University; Che 131, Fall 2011 Properties of matter 1. Physical properties
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This note was uploaded on 03/12/2012 for the course CHEMISTRY 131 taught by Professor Lacey during the Fall '11 term at SUNY Stony Brook.

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Review_Exam-1 - Exam 1, Tuesday September 20th, 8:30 10:00...

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