Welcome! As your homeroom teacher for your LAST year of high school, I will be sure to let you know whenever I hear about activities and deadlines important for seniors.
The first of these is the new final exemption policy. You received a copy in homeroom. The policy begins as of today (8/27). Be sure that you are aware of the tardies/absences that might prevent you from exempting the final exam of your choice.
Thanks for being members of my advisement group : )
Please visit with me http://nobel.scas.bcit.ca/resource/ Once there, at the bottom of the page, click on "oxidation number rules" button. There, you will find that in combinations of nonmetals not involving hydrogen and oxygen, the more electronegative element is considered to be negative. N is more electronegative than C. What does that tell us for the species CN^-1? How about for CNO^-1?
+1+7 -2 +1 +2 -3 +1-2 +4 -2 +1 -2 +1 +1 -2 +4 -3
KMnO4 + KCN + H2O ==> MnO2 + KOH + KOCN
We will balance redox equations on Thursday. Be sure that you are working problems in your text.
Folks, I located a few sites to help you on this unit.
Isotopic notation can be found at http://preparatorychemistry.com/Bishop_Isotope_Notation.htm
Atomic mass information is at http://nobel.scas.bcit.ca/chem0010/unit3/3.5.1_atomicMassCalc.htm
and http://www.docbrown.info/page04/4_73calcs01ram.htm
A practice site for frequency, wavelength, and energy calculations is found at http://chemistry.csudh.edu/lechelpcs/wavefreqcsn7.html
Help with electron configuration is found at http://preparatorychemistry.com/Bishop_complete_electron_configurations_frames.htm
As you know, we have new textbooks this year that were adopted for both general chemistry as well as honors chemistry. At many places, I will supplement what you find in your text. As you see a need for more problems (i.e. atomic mass of isotopes questions), let me know and I will find practice problems for you, either online or hard copies. : )
Honors students, you will have a quiz on isotopic notation on Wednesday, August 27. Be prepared : )
Hello honors gang! Your tests have been graded and will be posted soon. We reviewed the test today and discussed strategies you might employ to perform differently in the future. If you are disappointed with your performance on test 1, I suggest that you change your methodology for paying attention in class and for studying. You may also choose to move to a different seat in the classroom.
For this unit, it is your responsibility to read chapters 3 and 11. The homework is posted when you click on the link that follows (continue reading...) It is definitely to your advantage to read the material and to work as many problems as you feel you need to succeed in this unit.
EQ: • How are neutral atoms, ions and isotopes related? • What is the relationship between valence electrons, electron configuration and electron dots?
Chapter 4 suggested problems include 15, 18, 19, 23, 33, 39, 43, 49, 51, 53, 57, 61, 73, 77, and 89
There area a few problems in Chapter 20 (pp. 843-50) which we will also learn in these units. Problems include 11, 13, 15, 17, and 21.
This unit offers many opportunities for quizzes so do stay on top of your work to ensure that you are prepared.
Lab notebooks are due on Wednesday, August 27. Be sure to determine a percentage error or a percentage yield. Show your calculation in your notebook. Give an analysis/conclusion of your data including specific reasons for error.
EQ: • How are the products of chemical reactions predicted?
How are chemical reactions symbolically represented based on the Law of Conservation of Matter?
AP friends, we will have a quiz on Wednesday over double replacement reaction prediction and stoichiometry. It will not include oxidation/reduction although subsequent quizzes during this unit will. Happy studying!
As you get down to the nitty-gritty of preparing for tomorrow's test, perhaps the following will assist you:
http://www2.ucdsb.on.ca/tiss/stretton/Basic_skills/Dimensional_Analysis_Contents.htm
http://alysion.org/dimensional/fun.htm
http://www.wfu.edu/~ylwong/chem/dimensionanalysis/
Get a good night's sleep tonight and be sure to eat breakfast in the morning. Happy studying!