Lecture 10 - Topics for the day Administrative stuff Exam...

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Topics for the day Administrative stuff Exam Strategies Where were we? Valence electrons correction Homework/Sample Exam problems Administrative stuff If you requested an early makeup exam due to conflict with another course/exam, you should have received an email from Susan telling you where and when it will be held. EXTRA long office hours today with DrRuth: 2:30 - 4:30 pm DrRuth’s Thursday office hours CANCELLED this week. Endnotes You have till Friday midnight to make 70% on the first ALEKS objective (see score in ALEKS gradebook) Next topic: First periodic trends (section 12.15) Bonding. Chapters 13 & 14 for next exam. 1 2 3
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Look over the entire exam Mark the easy (for you), hard, and calculation Qs Notice the point values of the questions. Some are worth more points than others. Read EVERY WORD of each question carefully. Underline/circle/highlight important keywords Ask a proctor if you need any clarification Exam Strategies You don’t have to do it in the order it’s written! Do all the easy ones first. Make sure you try the ones worth more points earlier .... but.. Don’t get stuck on one question and run out of time for the others. Pace yourself. Don’t rush and get flustered. You can always skip a question and come back later. Another question may help you. Write your thoughts/working on scratch paper so you can see how you answered it later. Multiple choice strategies Read the question and try to answer before looking at the choices. If you are stuck, eliminate the answers that you know are wrong, so you have fewer options to choose from. More than one answer may look correct. Choose the *BEST* or *CLOSEST* answer. 4 5 6
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Calculation question strategies Write any formula and constants you may need by the question List the values of all variables supplied. One unknown - solve it (You may need to rearrange to get the unknown on its own.) More than one unknown - use multiple steps (Is there another equation you can use to find one of the unknowns?) Unit analysis to make sure your formula is right and that everything cancels. Change g to kg! Does your answer seem the right magnitude? Don’t leave early unless you’ve done these things: Check your answers. Try to make sure your answer makes sense/is realistic Watch for careless mistakes Try not to second guess yourself and change answers without good reason
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