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Welcome to Chemistry 20 WITH Miss Weisbrod

Welcome to Chemistry 20 WITH Miss Weisbrod. Seating Plan and Introductions. Seating Plan: It is expected of you to sit in your designated spot unless the teacher specifies otherwise. If you have trouble focusing in your spot or are frequently chatting you will be moved. My email!!!

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Welcome to Chemistry 20 WITH Miss Weisbrod

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  1. Welcome to Chemistry 20 WITH Miss Weisbrod

  2. Seating Plan and Introductions • Seating Plan: It is expected of you to sit in your designated spot unless the teacher specifies otherwise. If you have trouble focusing in your spot or are frequently chatting you will be moved.

  3. My email!!! • k.weisbrod@rcsd.ca • Feel free to send me an email if you have questions. There will be a class wiki page where all assignments and handouts will be available.

  4. Course Outline • Unit 1: Introduction to Chemistry • Unit 2: Atoms and Elements • Unit 3: Molecules and Compounds • Unit 4: Chemical Reactions • Unit 5: Mole and Stoichiometry

  5. Types of Assessment Break Down of Marks Exams………………………….40% Labs and Assignments……..30% Final Exam…………………….30%

  6. Exams • This includes quizzes and unit exams. • Minimum of a weeks notice will be given before an exam. • The final exam will be comprehensive.

  7. Assignments • This includes homework checks, activities, written assignments, Question of the Day and projects. • If you have trouble on any assignments or activities please make sure you get help from another class member or a teacher. • Question of the Day: Every day there will be a question on the board. It is expected that you come in and begin working on the question quietly.

  8. Laboratories Various laboratory experiments will be performed throughout the semester. The format for writing up labs will vary from lab to lab.

  9. Remember • Assignments are expected to be handed in on time (at the beginning of class), any work handed in late will lose 10% per day. • All assignments, exam, quizzes, etc. that are missed do to a non-excused absence will receive a mark of 0. • If a unit exam is missed, your parents/ guardians must contact the school no later than 8:30 the following day to excuse it. If not you will receive a mark of 0.

  10. Students Responsibilites • Treat the teacher and other students with respect. • Arrive to class on time and have books open and be ready to work. • Don’t talk when the teacher or another student is talking. Raise your hand and wait until it is your turn to talk. • Come to class ready to learn and participate.

  11. If a concept or directions are unclear it is then your responsibility to ask for help. • BYOT but it is not to be used for recreation. • Bring all the necessary materials (binder, textbook and writing materials) to every class. • If you choose to disregard your responsibilities you will accept the consequences.

  12. Laboratory Expectations • No food or drinks in the lab and be conscious about hair and clothing. • Immediately notify teacher if you spill chemicals or break glassware. • Conduct yourself in a responsible manner at all times in the laboratory. • When first entering a science room, do not touch any equipment, chemicals, or other materials in the laboratory area until you are instructed to do so.

  13. Unit 1: Introduction to Chemistry

  14. Scientific Notation Scientific notation is used to express very large numbers. For example: 1 230 000 in scientific notation is written as 1.23 x 106 Power Base Coefficient

  15. How to Write in Scientific Notation Step 1: Start with your number 234 000 Step 2: Covert this number to a decimal. 2.34 Step 3: Write x 10b after the coefficient, b= the number of spaces you moved the decimal. 234 000 So, 2.34 x 105 3 5 1 2 Start 4

  16. EXCEPTION Some times you will have to move the decimal from the left to the right instead of right to left. In this case the power will become negative. 0.00454 So this becomes 4.54 x 10-3 Move decimal this way

  17. Examples: • 245 000 000 • 0.0000293 • 134.9

  18. Your Turn a)145.0 b) 900 000 000 c) 0.902 d)0.0000004

  19. SI Units What are SI units? SI stands for Système international d’unités (International System of Units)

  20. gram g

  21. The metric system is based on units of 10, all conversions are easily made as it is simply done through movement of the decimal. There are 1000mm in a meter, there are 1000mg in a gram, and there are 1000mA in an amp. Likewise, there are 1000m in a kilometer, 1000 watts in a kilowatt, and 1000 Pa in a kilopascal. There are 1000 ml in a litre. If we know the prefixes associated with the metric system, we can convert units in all different aspects of science.

  22. What am I Talking About? 100cm = m 1m = pm 1 cL = L 1GW = W 1 μm = m

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