Friday, 3/19/10

• Today we will go over the Oxidation Numbers WS.  You will get more redox practice with the Oxidation-Reduction WS which is due Mon/Tue after the break.

• Enjoy Spring Break!

• Unit Packet #6 is due today

Wednesday, 3/17/10    Thursday, 3/18/10

• We will begin an introduction of Oxidation and Reduction Reactions in class today.  These are also known as redox reactions and are a way that we can organize chemical reactions by starting to look at how the reaction occurs instead of what the reactants and products are in the balanced chemical equations. 

• Homework is in the book: Read Ch 21.1-4 do problems 1-3, 6-8

• The Oxidation Numbers WS is also due on Friday.

• Make quiz correction on the Dynamics Unit Quiz and prepare Unit Packet #6 to turn in on Friday.

Monday, 3/15/10    Tuesday, 3/16/10

• Dynamics Unit Quiz

Friday, 3/12/10

• Go over Dynamics Review WS.

• Homework is to prepare for the quiz.

Wednesday, 3/10/10    Thursday, 3/11/10

• Today we will review reaction- and thermodynamics and will work on the Dynamics Review WS as preparation for the unit quiz which will be next Mon/Tue.

• The more you have reviewed assignments and developed your questions about the unit, the more effective the review time will be.

Monday, 3/8/10    Tuesday, 3/9/10

• Today we will work on the Rubber Bands and Free Energy Lab.  This lab uses the stretching of a rubber band to look at a reaction in dynamic equilibrium.  Homework is completing the lab questions which are due next class.  

Wednesday, 3/3/10    Thursday, 3/4/10

• Today we are introducing the last new content for the unit today.  We are going to discuss entropy and Gibb's free energy which tie together most of the material we have covered up to this point.

• Homework is from the book.  Read Ch 18.5-8, 10-11 do problems 12-19, 25, 26, 29, 30

Monday, 3/1/10    Tuesday, 3/2/10

• Presentations of Self Heating Food Containers.  If you do not present during class, you will need to come in during lunch by Monday of next week to give your presentation.

Wednesday, 2/24/10    Thursday, 2/25/10    Friday, 2/26/10

• During the next few class periods we will be working on an activity using our current knowledge of thermodynamics.  We will take a look at a product called "Hot Can" which is a self heating food container that is sold in Europe and then in groups of four or so, everyone will design their own self heating food container and produce a "commercial" for their product.  More details will be given in class.  Use these guidelines when you are working on the project.

• You will need this Table of Thermodynamic Properties from the Handbook of Chemistry and Physics to help you in this project. Remember, the table has all values provided in units of kcal/mol.  You will need to change the units to kJ/mol.  (1 kcal = 4.18 kJ)

• Presentations will be given Mon/Tue 3/1-2/10.

Monday, 2/22/10    Tuesday, 2/23/10  

• Today in class we worked on a lab Determining Heats of Reaction for two different reactions.  We used coffee cup calorimeters and the laptops to record temperature changes during the reaction and then were able to calculate heat (q) exchanged and eventually determine the heat of reaction.  Remember that both these lab questions and the Chapter 10 bookwork are due next class.  Make sure you give all problems on both assignments at least a try to get them stamped.

Thursday, 2/18/10    Friday, 2/19/10

• We started talking about energy and enthalpy last week but now it is really time to get down to the details when it comes to energy exchanges in a chemical reaction.  We will look at energy, enthalpy, specific heat and how it all comes together with experiments that can be done to collect data that tell us quite a bit about the system and its surroundings. 

• Homework is from the book: Read Chapter 10.1-6, 8-9 do problems 1, 2, 8-20, 27-32. Because this didn't get posted until Sunday, I will change the due date for this to Wed/Thu, Feb 24-25.

Tuesday, 2/16/10    Wednesday, 2/17/10

• Today we will spend the entire period playing the Enthalpy Costs Card Game that we looked at last week.  There are some Post-Game Questions for you to answer for homework tonight.

Thursday, 2/11/10    Friday, 2/12/10

• Equilibrium can be quantified by looking at relative concentrations of reactants and products when a system is at equilibrium.  We will look at how this is done and what information we can glean from it.

• We will wrap up the lab questions and take a more in depth look at the role that temperature (and more specifically heat energy) plays in chemical reactions.  We will be calling this heat energy "enthalpy" and will start looking today at how we denote in chemical equations as well as ways that we can calculate the amount of energy that should be released in a specific reaction. 

• We have a card game that will help you to practice calculating reaction enthalpies for simple formation reactions.  In the last bit of class today, you will be practicing the card game so that when you play it next week you will be able to focus on the chemistry involved instead of just trying to learn the rules!

• Homework is in the book.  Read chapter 18.9 do problems 22-24.

Tuesday, 2/9/10    Wednesday, 2/10/10

• Today we are going to do the Equilibrium and LeChatellier's Principle Lab.  You will get to see a very visible shift in the location of equilibrium as you change the properties of the reaction in the lab.  You will want to focus on developing explanations for why equilibrium has shifted in the direction that it has based on collision theory ideas that we have already learned.

• Homework is the lab questions as well as reading through the instructions for the card game that we will begin next class.  The Enthalpy Costs Card Game will help us remember how to construct a Lewis structure as well as take a look at how energy comes into play with chemical reactions.

Monday, 2/8/10

• Today we are going to review some of the ideas that were discussed on Monday and Tuesday of last week to make sure that everyone has a good solid understanding of collision theory and factors that affect reaction rates. 

• We will also discuss the results of your M&M lab from Wednesday and then add to the idea of equilibrium by looking into things that we can do to change the position of equilibrium via LeChatellier's Principle.

• Your homework is to take a look at the instructions for the Equilibrium and LeChatellier's Principle lab that we will do next class.  The opener next class will be a quiz based on the instructions for the lab.

Wednesday, 2/3/10  

• Today we are going to model equilibrium in chemical reactions with the M&M Equilibrium Lab.  Lab questions are due on Mon/Tue no matter what changes may occur to your schedule.

• Just a reminder:  There is a lunch meeting on Monday 2/8 for honors groups to discuss paperwork issues that remain after you have turned in your folders.  Every group must have at least one member present at the lunch meeting!

Monday, 2/1/10    Tuesday, 2/2/10

• Today we are introducing the dynamics unit with Reaction Dynamics and Equilibrium.

• Homework is to read Ch 18.1-4 do problems 1-7, 10-11

Friday, 1/29/10  

• Quiz Corrections

• Make sure that you are putting together unit packet #5 over the weekend to turn in during class on Mon/Tue.  Remember that if this unit packet is turned in late, there is no guarantee that it will make it onto your final grade for the semester.

Wednesday, 1/27/10    Thursday, 1/28/10

• Today we are going to be reviewing during the first half of class and taking the Stoichiometry Quiz during the last hour.

Monday, 1/25/10    Tuesday, 1/26/10

• Today we will finish the MicroMoles Rocket Lab.  The lab write-up is due next class.  Make sure that you include you data from your trials that you did during the last few classes.  The lab questions from the end of the lab also need to be included.  These should be done as a group.  The MicroMoles Rocket Follow Up Questions should also be included from each individual group member.

• Stoichiometry Unit Quiz will be this Wednesday / Thursday during the second half of class.

• Unit Packet #5 is due next week but you can start putting it together as a way to help prep for the quiz.

Thursday, 1/21/10    Friday, 1/22/10   

• Homework for today is Mole Conversions Quiz Corrections.

Tuesday, 1/19/10    Wednesday, 1/20/10

• All this week and early next week we will work on the MicroMoles Rocket Lab. 

• Homework for tonight is Stoichiometry WS II.

Friday, 1/15/10  

• Today we will review limiting reagents with a practice problem for the opener.  After that, everyone will work in groups to make sure that we have a good grasp on the processes involved in solving stoichiometry and limiting reagent problems.

Wednesday, 1/13/10    Thursday, 1/14/10

• Limiting reagents are the topic for the day.  This is the last bit of new content for the rest of the semester so everyone should start thinking about areas that are difficult that might require some extra help.  Spend the next few weeks asking those questions. 

• Homework for tonight is the Limiting Reagents Practice Worksheet.   Remember the math for solving these problems is just like the math for solving all of the other stoich and mole conversions problems.  You will need to be thinking about what the questions are asking you to describe.

Monday, 1/11/10    Tuesday, 1/12/10

• Today you will complete trials, analyze data, and write up your Production of Magnesium Oxide Lab.  Lab write-ups are due at the end of class. 

• Homework is a stoichiometry practice worksheet for a process called Chemical Vapor Deposition that we will study later in the school year when we have learned a bit more chemistry.  The CVD Worksheet is good practice for making sure you are solid with stoich!

Friday, 1/8/10

• Mole Conversions Quiz

Wednesday, 1/6/10    Thursday, 1/7/10

• Today we are starting to look at stoichiometry and the mol : mol ratio.  We will be putting stoich into practice with Production of Magnesium Oxide Lab. 

• Homework is also to work on the Stoichiometry WS.  The worksheet will be due Monday/Tuesday at the beginning of class and the lab will be due at the end of class.

Monday, 1/4/10    Tuesday, 1/5/10

• Welcome back!  We will start the new year with a review day of the mole conversions that we discussed before you left for the break.  In class, we will work on the Holiday Mole Exchange WS.  If you do not finish it in class, it will be homework. 

• Additionally, you will need to read Chapter 8.1-4 and do problems 1-7, 10-11.  This is an introduction to the material we will be covering during the rest of the week.

Friday, 12/11/09

• Continue working on Hydrated Salt Lab Procedure.  By the end of class today, groups should have a complete procedure, data table, and calculations section prepared for use next week.

• Homework over the weekend is the Mole Conversions WS.

Wednesday, 12/9/09    Thursday, 12/10/09   

• Once you have the mole to use as a tool, you can start to analyze molecules for quantifiable properties.  The Hydrated Salt Lab will be done to think about how that analysis can be preformed.  Today, groups will start working on a proposal for lab procedure to be done next week.

Monday, 12/7/09    Tuesday, 12/8/09

• Today we are going to go over the quiz from Friday.  You will need to do quiz corrections for Unit Packet #4 that is due next class.  If you earned 30 points or less, please remember to write your 3-4 sentences on how you are planning on preparing for the next quiz.

• We will begin discussing the Mole today. It is an important concept that helps us quantify atoms and molecules that are difficult to count or measure.  Homework is the Working with Molar Masses WS.

Friday, 12/4/09

• Covalent Compounds Quiz

Wednesday, 12/2/09    Thursday, 12/3/09

• Finish Exploring Intermolecular Forces Lab.

• Review for Friday's Test.  Topics may include: Intermolecular Attractive Forces, Polarity of Bonds and Molecules, Lewis Structures, and Nomenclature.  Don't forget that you should always be on the lookout to determine if the compound is ionic or covalent.

• Homework is to finish the lab and prepare for the test.

Monday, 11/30/09    Tuesday, 12/1/09

• Today we will discuss the difference between polar bonds and polar molecules.  We will use this to look into the intermolecular attractive forces (IMAF's) that are responsible for many properties of compounds.

• We will look at IMAF's with the Exploring Intermolecular Forces Lab.  Homework is to finish the Pre-lab questions.

Wednesday, 11/25/09

• Continue VSEPR Theory.

• Homework over the weekend is to add electron and molecular geometries to the Molecular Models Lab.

Monday, 11/23/09    Tuesday, 11/24/09

• Today we are going to cover a lot of the smaller details that have been alluded to so far with Lewis Structures.  These will include formal charge, coordinate covalent bonding, bond polarity, and resonance.

• We will also start talking about Valence Shell Electron Pair Repulsion (VSEPR) Theory. 

• No homework tonight.

Friday, 11/20/09

• Today we are continuing our look into the 3-D shapes that molecular structures take.  To help you visualize this, we will do the Shapes of Molecules Lab.

• Homework is to finish the 6 conclusion questions from the Molecular Modeling Lab.  You also need to make sure that you are completely comfortable with drawing Lewis structures because they are very important to the concepts we are dealing with over the next few weeks.

Wednesday, 11/18/09    Thursday, 11/19/09

• Modeling molecules gives us insight into the ways that they behave.  We will practice drawing Lewis structures and use modeling kits to look at how molecules end up being shaped in 3-D space with the Molecular Modeling Lab.  Finishing up the lab questions is tonight's homework.

Monday, 11/16/09    Tuesday, 11/17/09

• Today we are going to start talking about characteristics of covalent compounds.  We will also start looking at how Lewis dot structures can be drawn and used to analyze characteristics of a compound.  Homework is the Electron Dot Structure WS.

Thursday, 11/12/09    Friday, 11/13/09

• Go over quiz and make corrections.

• Unit Packet #3 is due Monday/Tuesday of next week.

Wednesday, 11/11/09

• Veteran's Day--No School!

Monday, 11/9/09    Tuesday, 11/10/09

• Unit Quiz over Ionic Compounds and Reaction Types

• Continue Reactionary Arts Lab

Friday, 11/6/09

• Today we will go use time to answer any questions you have from material this week and you can work on finishing the Reactionary Arts Lab.

• Homework over the weekend is the Predicting Products WS.

Wednesday, 11/4/09    Thursday, 11/5/09

• Today we are going to start another lab involving single replacement reactions.  The Reactionary Arts Lab uses chemistry to make a piece of artwork that you will be able to take home. 

• Homework is the pre-lab questions from the lab sheet and the Reactionary Arts Lab Questions

Monday, 11/2/09    Tuesday, 11/3/09

• Today we are going to take a look at single replacement reactions.  In the lab you will be Developing an Activity Series of Metals by looking at a number of single replacement reactions and using observations to determine which metals are likely to replace which other metals.  This allows us to construct the activity series of metals which can be used to determine if a single replacement reaction will occur.

• Homework is to finish the lab questions.  Really put some effort into thinking about how your lab reactions suggest the order for the activity series.   If you can do that...you are doing well!

Wednesday, 10/28/09

• HONORS:  Final Topic Assignment is due today!

• Today in class we will determine how we can figure out which products in a double replacement reaction is solid and which is aqueous.  Homework over the long weekend is two-fold.  First, you need to go back through the double replacement lab and COMPLETELY correct the 24 reactions your wrote.  Second, you will need to complete the Balancing Chemical Equations (Using Compound Names) WS. 

Monday, 10/26/09    Tuesday, 10/27/09

• Today we will be talking about chemical equations.  First we will speak in more general terms about how to balance reactants and products in a chemical equation.  We can practice this with the Balancing Equations Race.  We will start this in class and you will need to finish it for homework. 

• We will also talk about how you can predict products.  There are 5 different types of reactions that will help us narrow down the options.  Homework is to go back through and correct the 24 balanced chemical equations that you did during the double replacement lab.

Friday, 10/23/09

• Q and A on naming.  Finish Ionic Nomenclature WS for Mon/Tue.

Wednesday, 10/21/09    Thursday, 10/22/09

• Today we are going to start talking about ways to do the things you worked on in the lab last class.  We are going to start by looking into how we can determine the chemical formula for a compound.  The rule that governs this is called the "octet rule" and we will look at its implications. 

• We will also look into how we can determine the name of an ionic compound.  Homework is the Ionic Nomenclature WS.

• If you have any questions, you should use your book as a resource.  This information is all covered in Ch 5.1-12

Monday, 10/19/09    Tuesday, 10/20/09

• Today we are going to be in the lab doing Double Replacement Reactions: An Investigation.  You will be doing a set of reactions and making observations of what happens to each reaction while you work in the lab.  When you are done, you are going to start to think about what could possibly be happening to each of the compounds involved in the reaction.  I want you to consider as many possibilities as you can when you are thinking about good ways to predict products, name compounds, and determine solids that were formed.  If you have come up with a list of possible options on this assignment, you can consider how the possibilities relate to what we actually observe.

• Unit Packet #2 is due on Wed/Thu with Quiz Corrections included.

Thursday, 10/15/09    Friday, 10/16/09

• We will begin class today with a review of the content covered regarding the structure of the atom.  Come to class with questions because they will be main source of guidance for time.  If you have no questions, I will assume that you understand the content so well that you are ready for the unit quiz which....

• The unit quiz will be given in the second half of the period today.  It will cover: development of the atomic model, parts of the atom (and how to determine them from the periodic table), determining average atomic mass, periodic trends, electron configurations, and atomic spectra.  Remember: A good way to study for the quiz is to revisit old homework assignments and work through the problems again until you feel comfortable with them.  If you have problems and would like some help, it is best to not wait until the last minute.

Tuesday, 10/13/09    Wednesday, 10/14/09

• Today we are going to spend some time reviewing electron configurations and going over any questions that you might have thought of while working on your homework.

• We will take a look at an interesting consequence of the way that electrons pack into atoms with the Atomic Spectra Activity.

Friday, 10/9/09    Monday, 10/12/09

• No school...enjoy the break!

Wednesday, 10/7/09    Thursday, 10/8/09

• Today we will start with a review of the periodic trends that we discussed last class. If you have any questions, today is a good day to get them answered.

• We will also start talking about the current model of the atom called the "quantum" model.  This latest development happened less that 100 years ago!  We will also use some of the information that we learned about the quantum model to relate to the periodic table and we will be able to determine the electron configurations of the elements.

• Homework is to write out the long- and short-hand electron configurations of the first 36 elements.  It's easier than it sounds.  You will also need to draw out the Bohr models for elements from Period 3 and Group 18.  Ar is in both...you only have to do it once.  

Monday, 10/5/09    Tuesday, 10/6/09

• Today we will start talking about the Periodic Table and some of its trends.  The most important trend for you to be familiar with is the effective nuclear charge because this one idea can help you put together any of the other trends you will be expected to know.  Stick with this one...it might not come right to you the first time but once you have developed a good understanding of how effective nuclear charge works, the other trends will easily follow.

• Homework is to write a 1/2 page analogy that describes effective nuclear charge and/or shielding effects.

Friday, 10/2/09

• REMEMBER: TODAY IS THE LAST DAY TO SIGN UP FOR HONORS CREDIT!

• Each of the elements has its own interesting stories and uses.  Everyone will be assigned an element to research.  Look for interesting and useful information with the Periodic Table Elements Project.  The "Useful Chemistry Links" page might have some useful sites!  I strongly encourage that you watch your elements video at the Periodic Table of Videos site (though you will have to do this at home because the school's filter blocks the site...I promise there is nothing to worry about.)

Wednesday, 9/30/09    Thursday, 10/1/09

• Now that we have a pretty good idea of what an atom looks like and what parts make up all atoms, we will start to look at the periodic table to see how it can help us determine how many protons, neutrons and electrons are in each type of element.  We will also look at how those three things come together to give an atom it's mass and we will discuss how average mass can be calculated from information about the element.

• Homework is the Atomic Structure WS

Monday, 9/28/09    Tuesday, 9/29/09

• Today we will looking into the development of the atomic theory of matter.  There were four major players whose work we will take a look at.  Dalton, J.J. Thompson, Rutherford, and Bohr all made revolutionary discoveries that changed the way we view the smallest particles of matter.  Everybody will do a bit of research into these models and then we will come together as a class to synthesize our findings into some useful notes.

• Homework is from the book.  Read Ch 4.1-4 do problems 1-9

• This is a Letter from the CV Science Department to parents.  Please have your folks read the letter and sign it or just sign a note that they read it and turn it in to the inboxes.

• You will need to go over your quiz from last week and make any corrections necessary.  This will be the last part of Unit Packet #1 that will be due next class.

Friday, 9/25/09

• Dimensional Analysis Quiz (will be done as the Friday Opener Quiz)

• Next we will start to discuss the atom and its structure.  A short activity will be completed after the quiz to help start thinking about ways to test things that are too small to see.

Wednesday, 9/23/09    Thursday, 9/24/09

• Today we will answer questions on dimensional analysis.

• Everyone has the opportunity to get honors credit for Chemistry this year.  The credit requires students to complete an additional long term research project and take the project to the science fair in March.  We will discuss requirements for this project in class.

Monday, 9/21/09    Tuesday, 9/22/09

• We will use our knowledge of significant figures to measure the items that you brought into class on Friday to see if the manufacturer's claims are reasonable.

• Today we will really get into solving problems in chemistry that involve dimensional analysis.  You have had a taste of it and should have some questions when you come to class regarding parts of the homework that you struggled with.  Those questions will help guide our discussions in class. 

• Homework for today is more practice with the Using Dimensional Analysis WS.

Friday, 9/18/09   

• Measurement is a big part of what we will do in this class.  We examine important things to think about when you are measuring and how we imply accuracy in the way we report our measurements. 

• We will also begin to discuss the ways that we use mathematics in chemistry.  There are very few formulas to memorize.  Most end up being a string of conversions that are done.  This is a very important process to learn in order to make chemistry easier in the long run. 

• Homework over the weekend is Dimensional Analysis and Significant Figures WS.  Because this is a short period, we will likely not delve too far into dimensional analysis problems.  You should try to solve the conversions the best you can and on Monday we will really dive deep into strategies that you can utilize to make those problems easier.  Your homework will be graded based on your answers to the significant figures problems and/or a show of effort on the Dimensional Analysis/Conversion Factors.

Wednesday, 9/16/09    Thursday, 9/17/09

• Wrap up the Boyle's Law Lab and try to make some improvements in data analysis.

• Homework is to find 10 things in your home that are measured and list them.  Bring one of the things in and we will try to verify the measurement claim that is made on the bottle.

• Boyle's Law Lab Write-up is due Friday.

Monday, 9/14/09    Tuesday, 9/15/09

• Now that we are safe...we can start in the lab.  REMEBER: You will not be able to participate in the lab if you have not turned in your syllabus and safety contracts. 

• To become familiar with the technology that we will be using in class this year, we will complete the Boyle's Law Lab.

• Homework is to look around your house and find 10 objects that are measured in some way or another.  Please bring one un-opened package to measure in class on Wed/Thu.  If the object is food, you will not be able to eat it after it is measured.

THURSDAY, 9/10/09    FRIDAY, 9/11/09

• Today we will discuss safety in the chemistry laboratory and introduce everyone to many features of the classroom. 

WEDNESDAY 9/9/09

• Students attended a general orientation to CVHS science department policies at the stadium bleachers.

• As homework for this first day, students are to do the following two things for the next scheduled class period:

1. Read the Class Syllabus posted here (a hard copy will not be provided, nor will it be needed -- save a tree, just print the page to sign).  Bring your questions for the next class period.
2. Print, read, and then sign this Safety Contract.  Have your parents sign this contract as well.  Signed contracts are to be returned to class prior to participating in lab activities.

 

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