VIDEO: LIMITING REACTANTS and PERCENT YIELD

Students, here is the video shown in class on Monday and Tuesday to support mastery of the (titular) concepts.   Problems like this will be found on your FINAL (Dec. 13th-15th).

VIDEO: STOICHIOMETRY

Students, as with 'The Mole', I am making this Paul Andersen video available through the class blog.   Please watch as many times as you need:


The worksheet based on this video is available online HERE:

UNIT 4 SYLLABUS: THE CONVERSION EXPERIENCE

Students: here is the current Syllabus for Unit 4, which began on the week before Thanksgiving Vacation and goes until the end of the year.  Please use this to plan your time wisely in order to be prepared for your Fall Semester Final, which will occur between Wednesday, Dec. 14th and Friday, Dec. 16th. 

POWER POINT: The Conversion Experience, Part 2

STUDENTS: Clink on THIS LINK to find material on chemical reactions, balancing equations and stoichiometry.  

Use this to complete your Unit 4 Study Guide, 'The Conversion Experience', which will form the basis of your personalized Unit 4 Notes in your Composition Book.

POWER POINT: THE CONVERSION EXPERIENCE, PART 1

STUDENTS:   Here is the first part of
"The Conversion Experience" Study Guide shared in Mr. Hatfield's classes on Thursday and Monday.   

This set of notes reviews the concept of the mole and the molar mass, as well as unit conversions for moles to grams and moles to particles, then introduces the concept of the molar volume (22.4 L/mol at STP).

VIDEO: FIREWORKS!

Students who were in Mr. Hatfield's classes on Friday, Nov. 4th, watched a PBS video entitled 'Fireworks!'  Students who need to watch it again, or who were not present on Friday, will find the video embedded below in this post.

The worksheet for this video can be obtained HERE.

Students should pay careful attention to items related to their text, including Section 4.2, pg. 110-127 (electron configuration) and Section 6.5, pg. 185-190 (ionic compounds):

POWER POINT NOTES: "THE ELEMENTAL PATTERN" and "THE COSMIC FINGERPRINT"

Students:  Here are the TWO sections of Power Point Notes for Unit 3, 'The Cosmic Fingerprint'.

First, we have 'The Elemental Pattern', that shows how the periodic table contains deep information about the structure of the different elements:

Next, we have 'The Cosmic Fingerprint', that shows that the arrangement of electrons in the shells of atoms is related to an element's 'signature' of energy levels, which in turn can be used to explain the chemical properties of that element:

The Unit 3 Test is November 8th!

You should be using these slides to complete your Unit 3 Study Guides of the same title.   

Those Study Guides should be handed in before the beginning of Tuesday's class in order to ensure that you have plenty of time to create your personalized, detailed copy of the notes in your Composition Book.

VIDEO: THE MOLE

Students:  here is Paul Anderson's video, as shown in Monday's class, explaining the concept of the mole with helpful illustrations:




Student should use this video to complete a worksheet given in class, which is also available online HERE.

UNIT 3 SYLLABUS: THE COSMIC FINGERPRINT

Students: here is the current Unit 3 Syllabus, as given in class on Wednesday.  Please use this to plan your time wisely in order to be prepared for your Unit 3 Exam, which is on Wednesday, Nov. 2nd.

VIDEO: THE BUNSEN BURNER

Mr. Hatfield has made a video to demonstrate the correct way to use the Bunsen burner.  Make sure you review this before you come to class on Monday, as we will be using the Bunsen burners in class to perform the flame test lab.

VIDEO: BRIGHT LINE SIMULATION DEMO

In this video, Mr. Hatfield models how to use the on-line simulation that is part of our 'Bright Line Spectra' introduced in Friday's class.

The simulation itself can be found HERE.

 

POWER POINT NOTES: The Elemental Pattern

STUDENTS: This Power Point supports the notes on the periodic table, focusing especially on periodic trends related to the electron configuration of the different elements.  

Use this information to complete your Study Guide, which will form PART of the basis of your Unit 3 Notes.  (There will be a SECOND Study Guide in this Unit).

POWER POINT NOTES: THE FLAVORS OF MATTER

Students:  HERE are the revised Power Point Notes for Unit 2, 'The Flavors of Matter'.

The Unit 2 Test is

Tuesday, October 4th!

You should be using these slides to complete your Unit 2 Study Guide of the same title.   

That Study Guide should be handed in before the beginning of Thursday's class in order to ensure that you have plenty of time to create your personalized, detailed copy of the notes in your Composition Book.

UPDATE: UNIT 2 SYLLABUS

STUDENTS: due to the disruption of classes caused by both alarms and attendance, Mr. Hatfield is revising the present Unit Syllabus.  

Four items have been removed, and about half of the remaining assignments have been reordered.  

Please notice, however, that you are STILL expected to hand in your completed Unit 2 Study Guide this week, and you are STILL expected to take your Unit 2 exam on Tuesday, October 4th.

VIDEO: 'THE LIVES OF THE STARS'

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The following episode of Carl Sagan's Cosmos, 'The Lives of the Stars', forms the basis of a student homework assignment given in class on Friday, September 23rd.

 

  It can be viewed on-line currently HERE.

VIDEO: 'DRAWING ATOMS, HATFIELD STYLE'

In this VIDEO, Mr. Hatfield demonstrates his flat, two-dimensional, cartoony and unrealistic way to draw atoms. But that's not a bad thing.

Atoms don't 'look like' anything in the real world, so every attempt to draw them is going to be unrealistic in some sense: they're smaller than visibile light, after all!

But, Mr. Hatfield's way of drawing atoms does allow you to distinguish at a glance between the internal structure of a standard neutral atom, an ion or an isotope---and that can make all the difference in understanding the way that different substances (elements and compounds) actually behave.

VIDEO: THE PARTS OF AN ATOM

This video supports the basic knowledge needed to make drawings of atomic structure in Mr. Hatfield's Chemistry classes.  This knowledge will be tested and you will be expected to use those kinds of drawings on the Unit 2 Test.

UNIT 2 SYLLABUS

 

UNIT 2 BEGINS: THE EXPECTATION

 STUDENTS:  Today we begin Unit 2 of the course.

All work from Unit 1 is now past due, but may be submitted without penalty by Friday, September 16^th.

Students who have not yet completed portions of their Unit 1 Exam may come in to work on it today during lunch. 

Students who have yet to take the Unit 1 Exam will be given a Makeup Test that they will have to complete outside of class.

Students will be expected to hand in their Composition Books to be graded on Monday, September 12^th.

A detailed Unit 2 Syllabus will be provided next week.  In the meantime, our first assignment is Unit 2 will connect two topics covered in Unit 1, the nature of science and scientific notation.  That assignment will involve a video, ‘COSMIC VOYAGE’, which is available on-line, HERE:

VIDEO: "COSMIC VOYAGE"

Chemistry students will be viewing a 36-minute IMAX video in class beginning on Tuesday, September 3rd, and completing a worksheet based on part of the video. The film, 'Cosmic Voyage', was made in 1996 for the Smithsonian Institute and was clearly inspired by a classic science education film called 'Powers of Ten', originally produced in 1977 by the husband-and-wife team of Rae and Charles Eames.

'Cosmic Voyage' approaches the idea of using the metric system, which is based on powers of ten, to explore the question: "What is really large, and really small?" The film first zooms out from an acrobat's ring in St. Mark's Square in Venice, the place where Galileo first trained his telescope on the heavens.


Through 23 powers of ten, we leave first the Earth, then our solar system, then the Milky Way Galaxy behind, until we reach the limit of modern astronomy, where we can see images from about 13 billion years past.


Reversing course, the video then zooms in on drop of water in the Dutch town of Delft, where Antonie Van Leuuwenhoek first trained his early microscope to discover the hidden world of microbes.



As we zoom in on a paramecium, we penetrate its cell nucleus, then zoom in on a molecule of DNA.


Within that molecule is a carbon atom, and the world within that atom is mostly empty space! Within the atom, the atomic nucleus contains virtually all of an atom's mass, made of particles called protons and neutrons. These, in turn, are formed from even smaller particles called quarks.

The film continues with a discussion of the search for a fundamental theory in physics through the use of particle accelerators like Fermilab, along with an overview of the likely "recent" events that led to our sun, our solar system, the Earth and life itself.

Here, presented on YouTube, is the entire film,  if you wish to review the material or share it with others. As the narrator (Morgan Freeman) intones, 'we are all travelers on a voyage of discovery!'

POWER POINT NOTES: THE NATURE OF CHEMISTRY

Students:   HERE is a link to where you can get the Power Point, 'The Nature of Chemistry', which is used to help complete the Study Guide of the same name:

Remember: that Study Guide is a relatively-easy Assignment given to streamline the process of note-taking in this course.   You want to complete every part of it and hand it in as soon as possible, as it will be graded and returned to you in order that you can create your complete, detailed Notes inside your Composition Book:

You are not allowed to use the Study Guide on the Unit Test, but you ARE allowed to use your Composition Book, so this is really a very important routine that you must maintain in this class.  Make sure you do!

SYLLABUS, UNIT 1: INTRODUCTION TO CHEMISTRY

 Here is the Syllabus for Unit 1, 'Introduction To Chemistry', in Mr. Hatfield's Chemistry Classes:

Please notice that items marked with an asterisk (*), including the Complete Unit 1 Notes, must be completed to instructor’s satisfaction in order for students to be permitted to take the Summative Exam.  

Students are given time to complete most of this work in class.  Whatever is not completed in class becomes homework. If students have not completed the work prior to that Exam, they will be assigned Study Hall at Lunch or After-School to complete the work and the home will be contacted.

WELCOME TO CHEMISTRY!

Students, my name is Scott Hatfield, and I will be serving as your Chemistry Instructor in the 2022-2023 school year. We live in interesting times, in a world of unexpected challenges.  

The global pandemic of COVID-19 created real challenges for public schools, most of which were closed for part of 2019 and all of 2020. 

School districts switched to on-line learning through platforms like ZOOM or Microsoft Teams, and teachers and students had to adapt to changing conditions.

Instead of real print texts, students often had to use digital texts.  Instead of actually writing their own texts or performing actual calculations in real time, students submitted electronic documents.  And, in Chemistry, instead of doing actual labs with real chemicals, Chemistry students worked with on-line simulations.   

All of these on-line tools have their uses, but no one believes that they are as authentic or rewarding as actually doing real tasks in-person, in real time.  I want my students to know we will continue to use on-line resources like Microsoft Teams and this blog to communicate information about this course and research topics in Chemistry.  

But, at the same time, please understand we are committed to doing most of our work (reading, writing, calculations and labs)  in person, in class. The main usefulness of the on-line resources that I describe below is to support that work:

We already have classes set up in  MICROSOFT TEAMS, so you can be automatically notified about important events in class, obtain class materials and communicate with your instructor.* The Teams platform will often contain links to specific posts in this blog, so it is important that all of you are able to access THIS blog!    

DIGITAL TEXT:

While you should have already received Vol. 1 of your print text to work with, if you are forced to travel during the school year, it might be more helpful to access a digital version of the text. In that case, you will need to access this through the Clever app.

Log on HERE, using your FUSD student account:

Once you are in, you will find the 'Saavas Realize' link, that will take you to where you can log onto the digital curriculum, as shown below:

Just like Microsoft Teams, the online version of the text will be organized around classes---and your student information should already be imported into those classes.  Pretty convenient!

* So, if you don't have Teams on both your personal computer and your cellular device, click on one of the links provided!  Watch the video!  Download and install whatever versions of Teams you need!  Have questions?  Write them down, and send me an email:  Scott.Hatfield@fresnounified.org

STUDY GUIDE NOTES: ACIDS, BASES AND SALTS

Mr.Hatfield's Chemistry students should have completed their Notes on material related to pg. 146-171 (volume 2) of their textbook.   They can download a copy of the Power Point containing those Notes HERE:

Students received a Study Guide based upon this section of Notes on March 24.  If they have not completed it in class today (April 8th), it should be completed and ready to hand in after Spring Break, when Mr. Hatfield's classes will complete their titration labs and have a Unit Test on equilibrium, solutions, molarities, acids and bases. 

VIDEO: ACID-BASE EQUILIBRIUM

Students were shown this video in Friday's class.   Paul Andersen demonstrates the centrality of water to most acid-base chemistry, and explains how to calculate equilibrium constants for acids (Ka) and bases (Kb), and how to express those as pKa's or pKb's:

VIDEO: BALANCING EQUATIONS

In this VIDEO, Mr. Hatfield provides equations for reactions involving both ionic compounds and covalent compounds.

Then, step by step, Mr. Hatfield balances all of these equations.  

Balancing equations is an iterative procedure, sometimes called 'trial and error', and students have to practice the skill of unpacking and balancing equations many times before it will become routine:

 

POWER POINT NOTES: CHEMICAL KINETICS

Students, here are the Power Point Notes on Chemical Kinetics, which covers the concept of equilibrium and the rates of reaction.


The Study Guide based on these Notes were made available in class on Thursday, March 18th, and were completed in class yesterday.  

Most students have already completed the Study Guide, handed it in and had the graded work returned to them in class so that they can use it to create their Notes for the next Unit Test, in their Composition Book.

If you need to get another copy, you can download a PDF version of the Study Guide HERE.

The previous Power Point Notes on Thermochemistry are available HERE.

VIDEO: EQUILIBRIUM

Students: as of today, we are in a new unit, on 'Solutions, Acids and Bases."  

The first topic in this new unit is chemical kinetics, where we examine things that affect the rate of chemical reactions, including the relative concentration of reactants and products. 

In this video, Paul Anderson does a great job of providing a demonstration that suggests how such chemical systems reach  equilibrium:




Mr. Anderson also models how to equilibrium setups and solve for the value of the equilibrium constant, 'K'.  Students were given a worksheet based on this video in Thursday's class, including a short set of problems in which they will practice setting up equilibrium expressions.

This is a short topic, and on Friday the notes on Chemical Kinetics will be provided.  Both items should be treated as homework, and completed as soon as possible.

THERMOCHEMISTRY (ALL THE SLIDES!)

Students, you can download the Power Point Notes for Tuesday's Unit Test on Thermochemistry by either clicking HERE or on the graphic below:

Students should use this to complete their Study Guide, an Assignment which is due during Thursday's class, in order to prepare for Tuesday's UNIT TEST!

VIDEO: ENTHALPY OF REACTIONS

The following video was shared in class on Thursday, Feb. 17th.   

This video builds on material introduced by your instructor, Mr. Hatfield, during lecture on Wednesday, Feb. 16th.

In the video, Paul Anderson helpfully reviews some of the information already given in lecture regarding heat and the enthalpy of reactions. It also features a very handy, step-by-step demonstration of how to apply Hess's Law (a SUBTLE and advanced topic) to calculate enthalpies.




Students have an Assignment based on that video, which is available HERE as a PDF file.  Copies of this Assignment were made available in class to complete in class that day.

VIDEO: TEMPERATURE

Students:  Here is the 'Temperature' video by Paul Anderson, as shown in class.  Make sure you use colored pencils to complete the graph on pg. 3 of the handout based on the video.

POWER POINT: THERMOCHEMISTRY (1st 15 SLIDES)

Students:

Here are the first 15 Power Point slides from Mr. Hatfield's Thermochemistry Notes.   Use these to 'catch up' on completing the first two pages of the Study Guide on Thermochemistry.  Click HERE or on the image to download these slides.

WELCOME BACK! MOVING FORWARD . . .

Students:  Welcome back from Winter Break!   

Of course, it would have  been better if you had received this message on the first day of instruction.  I will be discussing the professional and personal circumstances that have kept me from being with you for the last two months, and reflecting on what would be the best way to support you for the rest of the year.  In the meantime, since we haven't connected until now, I hope you had an opportunity to "recharge your batteries", and reconnect with family and friends during the Break.

Now, coming back to school, we have yet another outbreak in our community to deal with as well, on top of the disruption to our class.  I know it hasn't been easy.

But, as the saying goes, the future is where we are going to spend the rest of our lives, and to know how to deal with the future, we will need to assess what students have learned in Chemistry in the last two months.