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Welcome to Chemistry

Welcome to Chemistry. Mrs. Schulze. Class rules and procedures. Students will demonstrate respect toward themselves, others, and property. No food, drink, or gum in this room Exception- water bottles, but not at lab tables

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Welcome to Chemistry

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  1. Welcome to Chemistry Mrs. Schulze

  2. Class rules and procedures • Students will demonstrate respect toward themselves, others, and property. • No food, drink, or gum in this room • Exception- water bottles, but not at lab tables • Emergency exiting- turn left out door, then exit left at end of hall • “Secure all classrooms”- ignore fire alarm • “Secure all doors and continue instruction”

  3. Late= ½ absence (>15 min= absence) • 10 absences= no credit • Cell phones- if visible or audible, will be confiscated for period (longer, if repeat) • Dress code- • Don’t reveal bare backs, midriffs, or undergarments • Shorts, skirts, or dresses shall extend beyond the fingertips of the downward extended arm. • Avoid scented lotions and sprays

  4. What you will need • Textbook • Scientific Calculator (~$10) • 3-ring Binder (~$3) • I will post my PowerPoint slides on my page on Mahar’s website.

  5. Grading • Total Points 2000-2300 • Labs (25, at 25 pts. each) 35% • Homework 15-20% • Quizzes 10% • Tests 35% • Notebook 2%

  6. Happy Hal Did homework on time 230/230 Labs done on time 285/300 Did well on quizzes 132/152 Prepared for tests 350/425 Total 997/1107 90% Sad Sam Late homeworks 115/230 Sloppy/late labs 190/300 Poor quizzes 100/152 Poor tests 250/425 Total 655/1107 59% Two scenerios

  7. Chemistry Homework !!! “ Chemistry is not a spectator sport, you must become involved, and that means that you must do homework!” Linus Pauling - 1967

  8. Advice from former students • Ask lots of questions during class. • Pay attention, even during labs. • Take notes! You will need them. • ALWAYS do your homework. • Keep up with your lab reports. • Keep an organized binder. • Keep all your labs

  9. My goals for you • Learn chemistry • learn problem solving strategies • Discover how you learn best • Memorize this . . . • Why was the second one easier? • It was organized in a way that made sense to you. fjiwlsqin chemistry

  10. Chemistry • The study of the composition of and changes in matter.

  11. Matter • What stuff is made of. • Chemicals • Anything that has. . . • mass • inertia (resistance to change in motion) • takes up space • has energy

  12. Some questions addressed in this course. . . • What causes “brain freeze”? • What is the best way to purify water? • How can water striders walk on water? • What causes the different colors seen in fireworks? • What are some tests that can identify an unknown substance (like in CSI)? • Why do some substances not dissolve in water? • How are nuclear reactions different from chemical reactions?

  13. What we will study. . . • Proper measurement and lab techniques • The structure of an atom • The arrangement of the periodic table • The reactivity of elements • Writing chemical formulas and equations • Determining amounts of reactants and products • The behavior of gases • Acids and bases

  14. Nature, Chemistry and You • People need • Food, water • Clothing • Shelter • Energy

  15. Chemists have helped. . . • Reduce starvation • Preservatives • Fertilizers • Pesticides • Improve shelter • Shingles • Sheetrock • Insulation • Paints

  16. Improve clothing • Synthetics (rayon, nylon, polyester) make clothes cheaper, stronger, lighter • synthetic footwear • Improve our health • Medicines • Antibiotics • Vitamin supplements • Fire prevention • Forensics • Antiterrorism

  17. Develop and improve conveniences • Plastics • Foams • Vinyl • Alloys • Fiberglass • Used in cars and electrical appliances

  18. Develop new energy sources

  19. Annual US consumption of energy from various sources.

  20. Problems have also been created • water pollution • smog and acid rain • landfill dumps • hazardous waste sites • food containing chemical residues • nuclear waste

  21. Fields in chemistry • Organic- compounds with carbon • Inorganic- noncarbon compounds • Biochemistry- processes in living organisms

  22. Analytical chemistry- composition of matter • Physical chemistry- mechanisms of reactions

  23. 20 GB 40 GB 10 GB 2001 2002 2004 Hard drive Magnetic data storage 80 GB 160 GB 2006 2007 Nanotechnology has increased data storage capacity of the iPod

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