HonorsChemistry

=Mr. Langellier's Honors Chemistry=

= = =5.24.2012--Late night update: Here's a review sheet for our final. Please note: This is a starting point, not "everything!" Make sure to review your notes and HW from the semester, and make sure to actually try the problems (redo them from scratch!). Looking at something is NOT the same thing as actually attempting the problem. If you're studying with a partner/partners, make sure that you're getting what you need--"Getting done" with the review is not the goal; understanding how to do the problems is!= == =I'll leave these up for a short while if you wish to download:= = = =5.22.2012--I'll up the Tie-Dye photos later. Here I'm going to up the Q4 Review packet. I'll provide a copy in class tomorrow, but it's here if you a) miss class b) lose it or c) want to get an early start on your review (not a bad idea!)= =5.16.2012--Here's the shirt-washing instructions from the company:= 12. Fill the washing machine with cold water and add 1-2 tablespoons of dishwashing detergent to the wash water. 13. Take off the rubber bands and put the shirt in the water. 14. Let the shirt go through a normal wash cycle. 15. (Can be done after the 1st wearing). Wash your shirt in a normal warm water cycle. Watch the rinse water for any dye still coming off. Repeat until there is no more loose dye in the rinse water. =You may get a bit more color to stay by first rinsing in the laundry tub, but it's time-consuming and messy! If you've got a pair of gloves (or a couple shopping bags to pretend) that'll keep your hands clean as you unwrap your shirt. Wipe up the laundry sink, the edge of the washer, etc. after you get the shirt in the washer. The washer cleans itself, so no worries about the inside of it (up to the level the water fills). If you get dye on your hands, go wash your hair! Shampoo + hair as scrubbing device seems to work pretty well. Good luck! We'll pick a date next week to wear them to class. There may be students from other classes wearing them Friday, but that's not us!= =5.15.2012--Tie-Dye: Leave your shirts in the bag tonight. I'll have full washing instructions for you tomorrow. Tomorrow's test: Here's the review solutions. Pay attention to HOW TO do the problems: You're not getting points for these, you're getting points for doing similar work tomorrow. I'll be out late this evening so you're going to need to help each other out on the discussion board. Good luck and work hard!=
 * Washing directions:**

=5.11.2012--You are to finish the lab for turn-in on Monday. If I didn't collect your prelab assignment, that's due in addition to the rest of the packet (Prelab on separate paper, the rest of lab in the spaces in the lab packet). If you have questions, you need to be communicating with each other on the discussion board here.= =5.3.2012--Do the 2 "Dalton's Law" problems (part 2) of the Worksheet 7C sheet from Wednesday's classwork, and do problems 1-3 on the worksheet I handed out today on the Ideal Gas Law/Dalton's Law worksheet.= = = =4.25.2012--OK, Friday's our big day--1) Lab report due 2) Test on Stoichiometry.= =Juniors, you've got a bit of catching up to do. I hope that you have by now tackled your test review worksheet. I will also post the lab sheet right now. You can get data to calculate with tomorrow, but it is highly likely that there will be a lab-based set of questions, so it is critical that you (all, including sophomores) fully understand the concepts, calculations, and analysis as done in the lab. All students, bring your questions about "anything stoichiometry" to class tomorrow. //__**Tonight**__ is the night to decide if you have questions. __Tomorrow night will likely be too late__ to do anything about it!//= =4.24.2012--Tonight you should be working on your "prelab" (Title, purpose, background, materials list, procedure, safety statement, neat data tables, (observations?), and begin your data analysis. You should get thru data analysis question 3 tonight. Follow instructions that came with our previous "prelab" (for MgO lab) and make sure to introduce each of your calculations before you start writing them out. Be working through your Review sheet, our test is on Friday.= =4.21.2012--Just changed the format of our powerpoint notes below to PDF so that it'll work better for you.= =4.19.2012--Here's our notes from this chapter, through limiting reactant problems. I actually updated this (at the beginning) since we saw it in class, so take a quick look through and see if there's something new for you to take a note on.= =4.17.2012--Upon further review, you should be able to complete all of the worksheet I gave you today. (I initially thought one problem was beyond us, but it's not!) Finish it up for tomorrow, post Q's here if you have any.= =4.16.2012--I'm adding this PDF as additional help/examples. Ask questions on discussion board if you need to for tonight's HW. "Part C" is where it gets especially helpful.= == =4.9.2012--I'm uploading a PDF of the answers to problems 1-10 from the Net Ionic Equation worksheet. You need to make sure that you understanding why each answer is just as it is. If not, you must get it figured out by a) thinking a bit more about it, or b) asking a question on the Wiki, or c) arranging to come in to see me. Adding a former HW assignment so you've got access to solubility table/metal activity series. = =4.7.2012--I'm uploading a couple example problems from the HW (problems #1 and #5), as well as an example SR reaction NIE. I really want you to work hard on understanding these, and I expect your homework to be done on Monday. If you have questions on the worksheet that my PDF below doesn't help you to answer, I expect that you'll be asking questions on the wiki discussion board.= = Gosh, that's awful quality. Here are the 3 pages, separately. They're big (8MB) and beautiful, rather than small and ugly like the single PDF.= = = =4.4.2012--No action on the discussion board, is it safe to assume we're ready to predict products for tomorrow's quiz? I'll be lurking here, so post a Q if you've got one.= =4.2.2012--I'm posting our notes that detail, well, everything we've done in Ch. 7 thus far. If you need to see something you missed or to go over an example problem again, here you are! Our HW for tonight is to predict products for the 15 reaction equations on the given worksheet.=

=3.20.2012--HW: From the same WS as posted below (from Monday's HW), write the type of reaction for each of the 20 reactions, using today's notes.= =3.19.2012--Here's tonite's HW sheet. Any questions? Post 'em on the message board!= =3.16.2012--Here's my typed-up thoughts about finishing up your report for Monday. Some good questions were asked/answered on the discussion page yesterday, so you could check those out. Or ask a question of your own! Your mole is due on Monday --I'm awarding 10 test points for it. (turn that 93% into 103%!!)= =3.15.2012--OK, here's the part where I make you a small deal due to the fact that I fouled up this morning a bit. I'm going to collect your lab on Monday rather than tomorrow. I'm going to post this now and add on to it before 8pm. This is because I didn't get my act together well enough to have a fully clear discussion with you of exactly what I want, and I don't want to make my problem become your problem. So my apologies there.= =That said, your big priority for tonight is to get ready for the test tomorrow. **This includes being prepared to do calculations of empirical formulas based upon laboratory data, like #14 from the reviewsheet you got on Monday, or like the sheet I gave you in class today. If you want to discuss these practice problems, start a thread or join a thread on the discussion page. (Your need to know how to do these problems is more important than your need to "remain anonymous"! So ask your questions/share your confusion/contribute your understanding in a thread. Not just tonight, but throughout the rest of the year!) I'm going to load the reviewsheet from today and Monday's as well. If you can do these review problems well, if you understand all the bulleted points at the beginning of the review, and you have your vocab terms mastered, you should be in good shape! Go over your class notes one last time--You'll likely pick up a point or five on the test by doing so. Both review sheets are on the same Word doc: = =3.13.2012--Your "prelab" is due tomorrow for admission to lab--Without a prelab, I'll ask you to come in to make it up on your own time. //Please// do a good job in writing out your Background section and your Procedure section. My expectation is that what you bring to class tomorrow is exactly what you'll be turning in as the first half of our lab. By rewriting your procedure in your own words, you are making sure that you know what to do tomorrow. I started a thread on the discussion board, post any questions you may have.= =3.8.2012--For tonight, you're finishing up your calculations for the CuSO4*XH2O demonstration lab. If you have questions, post them on the discussion board. Someone (a classmate, me) will be along to help answer these questions. Please help others to answer their questions as well. I can offer help, but it's more beneficial if you guys help each other!= =Some hints: We're calculating the mass % of water in the hydrate in two different ways:= =__First__, by using the formula of the hydrate (you need to determine the whole number that X is in the formula CuSO4•XH2O first!) like we did on Mole WS IV, and like we reviewed today with the MgSO4•7H2O example. __Second__, by using your lab data and the equation that's given in the middle of the first page of the handout. This calculation is both easier and faster than the one based on the formula: Just write the equation as given on the handout, substitute your values in and calculate!= =__Finally__, you're to calculate the % error. Look up the % error equation in your notebook or in Ch. 2 of your text, Rewrite that equation as the starting point of the problem, then substitute our values in and solve.= = Be done so that you can turn your lab in first thing in the morning. = =3.4.2012--By request. Had some trouble finding it: = =3.2.2012--I'm going to post a pattern for sewing a mole here. I'll talk about it on Tuesday; we'll have a due date the week after next. If you have questions about your 3rd quarter Target exam (given on Monday! ), ask on the discussion page!=

=2.29.2012--Finish up your calculations and questions on the "Bean" lab; be ready to turn it in at the beginning of class tomorrow. If you need to discuss the post-lab, do so on our discussion page!= =2.24.2012--//Next// Friday we will have our 3rd Quarter learning target test. (We've finished the material, so we won't delay in taking the test!) (And yes, Sydney, this means that the 4th quarter target test will contain info we learned in 3rd quarter.)= =I'm going to post both the targets (we're Honors, so the red info is for us as well as the rest of it), and the review sheet. Print these and start your review over this weekend. =

=2.15.2012--Also to think about (start with the ideas posted yesterday!)= Know the properties of ionic compounds, polar covalent compounds, nonpolar covalent compounds. Be able to compare/contrast these properties. Our lab activities of the last couple days highlight this: What properties do polar covalent and ionic compounds have in common? How are these compounds different? How do the properties of metals compare/contrast to those of ionic and covalent compounds? In addition to determining the electron geometry and the shape about an atom in a molecule, you must be able to name its hybridization. • If you're missing some notes, you can scroll way down the page: From late February last year I've got some notes up. =2.14.2012--Here's a partial list of things to be reviewing for Thursday's test:=

Bonding Test Review (features much of Ch. 14 and Ch. 15 from our book) __Vocab/terms to know__: Valence electrons, octet rule, Lewis diagram, electron dot structure, ionic bond, covalent bond, shared pair, lone pair, VSEPR theory, resonance structures, coordinate bond, polar/nonpolar bond, polar/nonpolar molecule, electron geometry, “shape” of molecule (aka molecular geom.), bond angle, electronegativity, coordination number, malleable, ductile, sea of electrons, • Be able to determine the dot structure, electron configuration, and/or valence e- for all atoms in the s and p blocks, and for their ions as well. • Be able to draw Lewis structures for all molecular compounds, including polyatomic ions. Be able to interpret these sketches to determine the electron geometry, the shape, the bond angles. Be able to determine if its bonds are polar or nonpolar, and also if the molecule is polar or nonpolar. • Be able to show the polarity of a bond, using"vectors" or by drawing partial charge symbols. • Be able to rank bonds, so as to show which has the highest polarity, which the lowest polarity • Which are the 7 diatomic elements? Which elements are the most electronegative on the P Table? • Be able to use our findings from our labs to differentiate between ionic and covalent compounds, based on their physical properties. • Be able to write the equation showing ionization of ionic compounds as they dissolve in water, as we worked on with our //Ionization of Ionic Compounds// worksheet. • Be able to show how ionic compounds form from their atoms, using arrows to show the transfer of electrons as we did on //Ionic Bond HW//. This is also shown in Ch. 14. =2.7.2012--Tonight's HW is slightly different for the two classes, based on how far we got in our note-taking today: Period 1, do 1-8 on the worksheet handed out. Period 2, do 1-4. As promised, [|here is a periodic table of electronegativities that you can use if you don't have your Augustana periodic table] := =EN Periodic Table=

= **1.30.2012--OK, tonight's homework is to work on the Lewis Structures worksheet I gave you. You may not be 100% confident (or 100% perfect) but you need to write down your best effort on these, following the rules we've got. We'll compare answers tomorrow and you can see if/where you need improvement. I'm posting here a "Rules of Thumb" sheet that will perhaps help with a question or two you may have.** = ** DO NOT worry about the "Resonance Structures" question at the end--We're not ready for that yet.** **Our quiz tomorrow is over ionic compounds. Study your notes and worksheet--You may be asked about the structure of ionic compounds, their properties, or be asked to write the equations showing how they ionize when dissolving in water.**

= **1.15.2012--Sorry this is up late, I've had issues with my neck/back this weekend and posting hasn't been at the front of my concerns. After my brief intro/hint/encouragement/warning, I've got a review PDF linked.** =

= = =Don’t be afraid to go back to look at your notes, your homework sheets, your old quizzes! Sometimes it seems that students think that a review sheet is “everything” they need to know. In my mind, the review sheet is a reminder of what you’ve done—Pick those things that you need extra study on and go back to your materials from earlier in the semester. We took those notes and did those HW assignments in part so we can look at them now!= == = = = **1.3.2012--I gave you a hard copy of this before break, but here's our quarter 2 review packet: and the targets they're based on: ** = = **12.7.2011--OK, I'm going to put up some additional things for you to practice with now, and I'm going to add some more this evening...** =

**Edit: Here's a new worksheet to help with "special" metals and naming ionic compounds: ** **Answer Key for Formulas/Nomenclature WS: ** = **Practice Test (from today in class) Answer Key:** = = **"More Naming Practice" (like today's practice test)** = = **Hungry for more? Try these! ** = = **12.4.2011--OK, it's safe to say that you need as much practice as you can get... Here's a PDF file that mixes both ionic naming/formula writing onto the same worksheet. Start work on this; I'll have an answer key available in class. Keep working on those flashcards, including the newly-added "families" of ions based on the "ates" you know--Can you write formulas for sulfite, for phosphite, for hypochlorite, for periodate?** = == = **11.30.2011--Tonight we are going to write names for all the formulas (1-48!!) on last night's HW. (Part 2 of the HW sheet). This assignment isn't so long as it first appears: There are 8 cations to name (correctly), and 6 anions to name (correctly). The 48 answers will simply be the appropriate combination for that box as we "Name the cation, name the anion." Pay attention to: Look for the "special metals" and name them correctly! Use your notes from today and the left column of your ion sheet (see entry from 11.18 below if you're not sure which one) to help.** = = ** Also to work on :** =
 * =** Keep working on those polyatomic ion flashcards ! If you don't know these perfectly you'll find trouble on every ionic quiz and test the rest of the unit.**=
 * =** Make new flashcards to practice your "special" metals . For example, on one side, write Iron/Fe. On the other side, write +2, Iron (II), Ferrous and +3, Iron (III), ferric. As with the polyatomics, practice, practice, practice!**=


 * 11.29.2011--OK, quiz tomorrow on our progress in Ch. 5 so far. Here's our HW sheet due tomorrow, I'm posting for absent students: **

**11.28.2011--OK, two things for tonight:**
 * = Do your HW sheet, writing ionic formulas for the grid I gave you. Answer Question 1 and Question 2 (we did #2 together in class this A.M.). //** You do not need to do the extension exercises **//--We'll get to those later. Need some extra help? Roll thru this online powerpoint I found. It's pretty good (except they don't remove charges from compound formula after writing it!)=
 * =We'll have a "requiz" on polyatomic ions for everybody. Same ions, but not the identical quiz. Max grade of 14 possible, so definitely room to improve on your grade today if it didn't go well!=

**11.18.2011--Tests have been graded and I'll be entering the grades on MyGradebook tonight. For your pleasure:** **Make a set of flash cards for the 16 yellow-highlighted ions and study, study, study them** **. We'll soon enough be** // **doing stuff with them** // **, and you need to get to the point where:** =For sure this takes a lot of practice! We will be taking a quiz over these ions on Monday when we get back .=
 * =you instantly know the name when you see the ion in a formula, or=
 * =you instantly know the formula (including charge) when you read the ion's name.=

=11.17.2011--Test tomorrow! Uploading the review thoughts sheet for an absent student. I can see some of you checking the discussion threads, do any of you have a question? Post it!= =11.3.2011--Finish your "Signature Electron" worksheet. Read and follow your instructions, they really do explain what you need to do!= =10.27.2011--OK, tomorrow is the Q1 Learning Target test. Don't neglect to go over your review materials and notes one last time! Here's the experimental design notes/worksheet from today:=

And in PDF Format if Word makes your computer sad:


=From the review packet/booklet! Cross off # 27! We're not to be tested over the neutron's discoverer. Lavoisier is credited with the Law of Conservation of Matter. And Bohr put electrons into energy levels.= = = =10.25.2011-Going to upload my review thoughts half-sheet for the couple of you who were out today.= =10.24.2011--Test Week! Wednesday will be our Ch. 4/26 unit test. On Friday we will have our Quarter 1 test. Here is a copy of the target goals and our review for the quarter test:= =10.20.2011--We're quizzing tomorrow on nuclear reactions. Know/be able to write the formulas for all of our particles (alpha, beta, neutron, proton, positron) so that you can put them in a nuclear reaction. Be able to balance a nuclear equation by adding the missing particle, as in our HW from this past week; and be able to ID that reaction as alpha/beta decay, fission, fusion, electron capture, or positron emission. Know how to write a nuclear equation like we did in HW for the reaction types we discussed in notes--alpha decay, beta decay, postiron emission, electron capture. For example: "Write the equation that shows the beta decay of a fluorine-20 atom" We'll have one half-life reaction problem that you can solve using any of our 3 techniques we worked on in class today.= = = =10.13.2011-- Homework: Finish both sides of the "nuclear equations worksheet" you received today/yesterday. If you were out of class for the PSAT, here's the powerpoynt notes. (If you don't have powerpoynt on your computer, you need to find a classmate to get notes from!) As you saw in class today, we've gotten notes thru the "bombardment" type of reaction.= = = =9.30.2011--Homework for the weekend, finish the worksheet we began in class today. I'm uploading it here for those who missed class.= = = =9.28.2011--Study tonight! ( Test tomorrow ) I have a before-school meeting tomorrow so I won't be available!! Post your questions on the discussion page linked above! I strongly recommend that you do a quick browsing through your class notes, your completed homework, and Ch. 2 in your textbook. Make sure you know the equations we've learned. Make sure you know all the metric equalities (such as 1,000,000 micrometers equals 1 meter); I expect you to have them memorized. Be able to do one-step and multi-step dimensional analysis problems, including the "Cubic volume" conversions and "using density as a conversion factor" types. You should have examples in your notes of these types of conversions in action!= = I will be checking in tonight, so if you have questions, post them in the discussion thread at the top of this page. Feel free to jump in and help answer any questions you can!= = = =9.26.2011--Keep working on "polishing" your DA skills. We're having a quiz Tuesday, our Ch. 2/3 test will be on Thursday. Tonight, your homework is to post a question or to provide help to someone else's question on the discussion board. I can see that some have already begun to do so as of 6pm, many more must post! You can make a question specific (about problem 2d from the last worksheet) or general (How do I know what units to put on top/on bottom?). Ask/answer as many as you can/as you need! IF I CAN'T TELL WHO YOU ARE BY YOUR USER NAME, YOU'LL HAVE TO LET ME KNOW WHAT THAT NAME IS!!=

=9.23.2011-- Work on this Dimensional analysis worksheet. We're going to have a quiz on Tuesday, so you need to be working hard on your skills, and on identifying what types of problems make you uncomfortable, so that you can ask questions on Monday!= =9.21.2011-- Complete your worksheet from today (do both temperature conversions and dimensional analysis ). Be prepping for our quiz on metric equalities ( This quiz is Friday ). I'll post here the practice sheet; you can print it for your own practice.= =9.19.2011: For tonight: Finish up your lab report, as much as you can : You should be able to do everything that does not require the class average data for the solids. I will be checking your graph for homework points. The only part you can't do tonight is 1) fill in the class average column for the second data table, and 2) questions 4 and 7 on the third page. //Read all directions// (they're all over the packet, on pages 1, 2, and 3!) to ensure you're doing the assignment in the way I want you to.=

=9.13.2011: Complete the //Significant Figures Extra Practice// worksheet for tomorrow. Study for the 3A elements quiz for tomorrow.=

=9.6.2011 Study for your 2A element quiz (spelling counts, remember the 2A metal ion charge!). Our classroom matter classification activity is due. I will collect it at the bell tomorrow (if I don't already have it).= =8.31.2011: No homework tonight--We're nearly done with acquiring new information for Chapter 1, so that means it's time to start reviewing. Safety/Lab equipment quiz on Friday .= =8.30.2011: Do "Matter Worksheet" given in class today, I'll link it here just in case.= =8.29.2011: Read 1.6-1.8, and do problems 11-16 (a couple Q's are found at the end of each section). You need only do this assignment in your notebook. Keep your safety/lab equipment quiz (end of week) in mind.=

=8.26.2011: Weekend homework--Review, sign and date your Flinn Safety Contract, bring back for Monday. Since I'll be collecting and keeping this contract, here's a link to it so you can review for our upcoming safety quiz.=

= Flinn Safety Contract = = = =8.24.2011: As assigned in class today, read 1.1-1.5 from your textbook. Then print out and complete this assignment tonight; I will collect it at the beginning of class tomorrow. Don't forget to request membership to this page tonight! (12 of you have as of 5:15 pm!) Update! 30 as of 715pm! 52 by "after midnight"=



= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =5.17.2011: Postlab guidance:= = = =5.12.2011: Here's the summary of your prelab, due on Monday before doing the lab. =

=Here's the lab activity, if you didn't get it in class on Friday.= = = =4.9.2011: OK, you're working on the 4-page booklet of product predicting this weekend. Here's the notes, in pwerpoint form. Hopefully they work for you!=

= 3.14.2011: Our week lays out as follows: Tuesday 3/15--Hydrate Lab. Wednesday 3/16--Review and postlab questions. Thursday 3/17: Lab due and Ch. 6 Test. =

= I'm going to post a few things here. First, the review objectives/practice problems. = = 2nd, a two-page sheet that contains "advanced" empirical formula problems. These are advanced only in that the givens are not merely given as % composition. This worksheet should be helpful in solving the calculations from your hydrate lab. = = 3rd, a copy of the lab report. You can download/look at it tonight, but I'll have copies = =2.28.2011: Your bean lab is due at the start of class tomorrow morning. On Friday, we're going to take our Quarter 3 exam (as we're through the material now). Here is a copy of the Q3 Target test review. This is also available on the school's O-drive. Start work on it now; we'll have time to discuss on Thursday in class.=

=2.23.2011: Here's the answer keys to the 3 sheets we've worked on over the last couple of days. If I get a bit of time tonight, I may add a couple thoughts (summary of molecule polarity). Also: __DO NOT__ forget your basics: You've indicated you're happy writing Lewis sketches, but __double check__ that you've done them correctly! If they don't have the correct number of //total// electrons [the sum of the valence e-] then your sketch'll be wrong and every decision you make based on that sketch will be wrong! So double-check! Really!=

=2.21.2011: I'm feeling our test creeping up on us! Are you studying? Do this sheet also.=

=2.20.2011: Here's a little extra work on how we show bond polarity. Print it and do it. More to come!=

=2.17.2011: Here's a copy of 1) our "VSEPR/electron geometry/bond angle/shape" powerpoint notes [I'm still updating these to talk about hybridization] and 2) our "Polar Bonds/Polar Molecules" notes. Both important, both will take some time, thought, and repetitive practice to master!=

media type="file" key="VSEPRandTables.swf" width="360" height="270"

media type="file" key="PolarBondsMolecules.swf" width="360" height="270" =1.31.2011: Getting ready for our test Wednesday (I don't believe in snow days). Here's some keys to things we've done. As always: Keys are nice, but //__if__// you //don't take the time to figure out why each answer is done as it is, having the answer does **NOTHING** to help you the next time you're asked to perform the skill//!= =Hydrate practice sheet (answer key on 2nd page):= =The quiz key:= =The giant, 50 names/50 formulas worksheet key (It's doubled up, don't panic. Do not worry about the substances in italics:= =The answer key for our acid naming halfsheet:=

=1.25.2011: If you need to make up a polyatomic ion quiz, do so by the end of this week! Arrange with me or with Mr. Calder as appropriate.=

=Here's the covalent naming notes, in Flash form.=

media type="file" key="Covalent compounds.swf" width="360" height="270" =1.20.2011: I'm going to upload a copy of the ion list in PDF format (pending...), hopefully this will work for the few of you having issues with the .doc document. Also going to upload the flash file of our class notes from the last couple days.=

**Tomorrow's quiz will be over the 3rd grouping of polyatomics: chromate, dichromate, bicarbonate (or hydrogen carbonate), bisulfate (or hydrogen sulfate), cyanide, and thiocyanate. I'm also going to add a couple of ions from the first couple of quizzes, so review all of the ions we've learned!**

media type="file" key="Naming Ionic compounds.swf" width="360" height="270"

**1.15.2011 I'm uploading a copy of our ion list. You will be memorizing these over the next week or so--Make a set of flash cards of the polyatomic ions (column 2 of the list I'm uploading) (cut index cards up, or notebook paper into good-sized cards). On one side, write the formula of the ions (** NH ** 4 +1 ); on the other side the name of that ion (ammonium).** =The goal of this is that we can name ionic compounds looking at the formula, or that we can correctly write the formula given a name. We'll be training ourselves to see that **NH** 4 **Cl, NH** 4 **NO** 3 **, and (NH** 4 **)** 2 **SO­­** 4 all are compounds that start with "ammonium." We'll do a few quizzes over the polyatomic ions.= = The first group will be over the most common polyatomics: sulfate, nitrate, phosphate, carbonate, hydroxide, and ammonium. I promise it will take a lot of effort on your part to memorize these! Carry your flashcards around with you; review them on the bus, between classes, at lunch, at home... Be sure you're studying them backwards and forwards: Hydroxide is " **OH** –1 ", and " **OH** –1 " is hydroxide.= =//Most// students find it easier going one way (formula to ion name) than the other (ion name to correct formula). Find out which way is easier for you, and which harder: Study both ways until both are easy! OK: Here's the list. Don't worry about column one just yet.= =1.7.2011 Here's a copy of our semester exam review objectives. Also included are some problems. You should be going 'ouside' of this review (your notes, reading, homework assignments, returned quizzes) to be sure of seeing everything you need to see, but this is a great place to start.= =12.14.2010 As promised, a copy of today's Power-pointy notes. I'm exporting them to PDF and as a Flash object, so choose your fave.= =Also: your trends graphs/paragraphs are due in class tomorrow. Finish up your graphs and write your summary paragraphs, summarizing *your* understanding, in your own words, of atomic radius, IE, EA, electronegativity, how they are inter-related, and how they affect the reactivity of both metals and nonmetals. Use your lab/graphs, your notes, and perhaps your book as sources, but do your best to write in your own (but still correct!) wording. Your writing should be unique/not the same as any classmate's!=

Click below for a replay of the exciting trends powerpoint! media type="file" key="Trends.swf" width="360" height="270" =OK guys, I've got nothing new for you to tackle tonight--Let's go back to our notes and ensure that we're ready for a quiz on Friday : Know the symbols for frequency, wavelength, energy, Planck's constant, and the speed of light. Know the units that each of the above have. Your goal is to be able to do problems such as 3-6 on the HW sheet we discussed in class today ("sick day") easily, quickly, and with 100% accuracy! If you're not fully confident of your ability to do so, you must select a method of getting yourself to that point.= =11.30.2010: HW for tonight: Finish your lab, for turn-in tomorrow. All you need to do is add on to your existing lab (The "pre-lab" and observation table is now the completed first part of your lab). Follow the form on the 1/2-sheet I gave you in class (I'll upload it here after I type). This is updated compared to the questions/conclusion section that was on the sheet I uploaded yesterday, so be sure to use the new one!= =• Be sure to write everything (including questions 5 and 6) in clear, complete sentences. For the calculation problems, write your "barebones" equation you're using, substitute/solve, and box answer that has been rounded to correct SF and has correct units on it. • The conclusion is another very important part of your report: Put an appropriate amount of time and effort into writing it. Write a rough draft of your conclusion if handwriting; spend some time editing if you're typing your conclusion on the computer.= =• If you're planning on turning in a prelab section that's different than what you showed me in class today, you must include your rough draft (that I "stamped" in class) along with your turned in final draft. [For future reference: Really, you need to put in the time and effort to do a good job with your prelab BEFORE doing the lab--I'll be marking off for revisions in the future, because otherwise I fear I'll get lousy efforts for the prelab portion]= =• Finally, remember that your lab report is YOUR lab report. If your report is, in part or in whole, identical to another student's, I will give all parties involved a grade of zero. Trust me, your grade can't gracefully handle a zero on a lab!= =Good luck and goodnight! I'll now upload the 1/2 sheet of postlab questions in case you forgot it at school.=



=11.29.2010: OK, I'm going to post a couple things for tomorrow's lab and for beyond. For tonight's HW,= =1) bring in your "Sick Day" HW from before break--I'll be collecting it.= =2) Do your prelab as discussed in class (Title, purpose, background, materials, safety, procedure, empty data tables). I believe we'll have 7 different salts to test, so make a neat (computer-generated or with straight-edge if hand-written) table that will allow you to handwrite 2 or 3 sentences for each salt.= =Also included is a rubric for grading labs that should give you an idea of what I'm looking for in your report. Worth reading before you do any of your prelab writeup, so you know what areas to hit.=



=11.12.2010 Our notes from 1st half of Ch. 12: I'm upping these in a few different formats; let me know if one works (or doesn't work) well. Ooh, cool! the 3rd way is a Shockwave Flash of our notes, it's click-y, at least in this browser (Google chrome). It' s a bit small, but would be good for quick review. =

media type="file" key="BohrQmechEconfig.swf" width="360" height="270" =10.30.2010 Update for Alexandra:= =10.25.2010 Nuclear Notes= =10.14.2010: Review for Friday Quiz= Good extra practice getting ready for our quiz. A couple of things:
 * Remember using words (atomic # = protons) rather than by location (columns 1 and 3 are the same)--There's no guarantee the order in which you see the columns will be the same every time. And what if the question is in fill-in-th-blank form or multiple choice instead of a gridsheet? Base your learning on facts, not on patterns which can change.

== =and the key:=
 * I recommend working out the worksheet first, THEN checking the answers after you've completed the worksheet. It's FAR better to struggle and to check back in your notes and, yes, even to be wrong than to look over at the answer key every time you have the slightest amount of indecision. "There is beauty in the struggle."

=OK, Ch. 2/3 review things coming up: Up first, review booklet answers. Below that, "Dimensional Analysis Practice" (from class today) answers. I'm starting a discussion thread (click "Discussion" at top of page). Feel free to post questions there. Help each other out too! Farther below on this page are some additional practice problems and answers.= Answers to Ch. 2 review booklet (starting on p. 2) Answers to "dimensional analysis practice" worksheet: =Some practice testwork: Also, the answer key. FOR BEST RESULTS: do your answers first, then check answer key. Looking at the key as you're working won't let you know if you've "got it" or not!=

Also, pay special attention to the way I show work in the answer key: You need to be writing "bare-bones" equations when needed, showing work via dimensional analysis, and reporting your answers to correct SF, with correct units. Failure to do so WILL result in a loss of credit on the test! == =As promised, dimensional analysis notes.= == =For Monday, 9/20/2010:= <========= This is Homework for Monday <========= This is review for Tuesday quiz. The first 2 are in order; the last 4 are the format of your quiz.
 * Use your notes, your textbook (chapter 2), or other resources to **__complete the homework sheet__** attached below.
 * Study for your Tuesday quiz on the SI prefix equalities. I'm including a practice sheet--your quiz will not be in order, and you'll need to know which of the two units is larger, because the larger unit won't always be on the left, as it was in our notes.
 * Take another look at the 7A elements. We'll quiz on them Tuesday or Wednesday.

==
 * Below is a review/practice sheet for SF, as well as a copy of our notes from Wednesday.