Chemistry 2-22-24 Stoichiometry & Limiting Reactants

CHEMISTRY: So if you have 11 roller wheels, how many roller blade skates can you make? You know, really, limiting reactant is almost that simple. Well, the concept is anyway! You deal with limiting reactants in your life all the time. Now we’re just applying that same concept with chemical reactions! ๐Ÿ™‚

Here’s our lesson from Thursday on limiting reactants. Fun times!


flickr photo by muffytyrone

  • Hon Chemistry 2-22-24 Nuclear Reactors, Fission & Fusion

    HON CHEMISTRY: Wow! What do you think about fission and fusion? Can you now begin to understand the destructive force of the hydrogen bomb? It’s a fusion bomb! Just another reason you might not want to plan a trip to the sun!!

    We put the final touch on a lot today, and guess what? We’ve wrapped up the chapter! How are you doing on studying for the test? It will cover the beginning part of chapter 3 (through average atomic mass) and chapter 21. Did you find the Stuff to Know Sheet?

    Practice everything! And did I mention, PRACTICE!! I’ll be praying for you!


    Hon Chemistry 12-7-16 Isotopes, Nuclear Reactors, and Fusion from Tammy Skinner on Vimeo.

    Chemistry 2-21-24 Stoichiometry Homework

    CHEMISTRY: So how did you do with the stoichiometry problems on your own? Do you find that working these problem is kind of like following a map – and making sure you have the right passport before you try to get in to the next country?!

    Good job today! Here’s a look at some of the problems from homework last night. Be sure and get the answers at the beginning so you can go back and work these problems and more to practice for the test!


    Photo by Element5 Digital on Unsplash

    Hon Chemistry 2-21-24 Applications of Radioactivity, Pt. 2

    HON CHEMISTRY: Hey guys! Here’s the laaaast of the applications of radioactive isotopes. The Lord willing, we’ll finish fission and fusion on Monday.

    How are you studying? Be careful and don’t take the test for granted! And donโ€™t forget to check out the the Chapter 21 Stuff to Know & sheet (and yes, there actually is one!).

    Make sure you keep practicing half-life problems and nuclear equations. Also, make sure you’ve memorize the nuclear symbols for alpha particles, beta particles, positrons, neutrons, and protons. And then there are tons of notes on the conceptual stuff. Properties of radioactivity, people, types of radioactive decay, applications of radioactivity, definitions, definitions, and definitions!

    FYI – This is a pic of a test used to check on blood flow through the heart during a stress test. Fun, huh!?

    So what’s this about you probably having an radioactive isotope in your house?!? Don’t forget to research how smoke detectors, especially those with Americium, work!


    Image source http://www.cedars-sinai.edu

    Chemistry 2-20-24 Stoichiometry

    CHEMISTRY: Wow!! Great job today with stoichiometry!! Now it’s time to put everything you’ve learned from the last few chapters together. It’s like cooking – figuring out what you need to get what you want. Slightly different ingredients, though. Don’t forget molar mass and mole ratio!

    HW INFO – To find the pages for tonight’s homework, either go the the Textbook HW Tab and you’ll find the pages there. Also you can go to the online textbook, open the chapter, and then in the section where you can enter page numbers, enter R109. Either of these will take you to the pages for tonight’s homework.


    Photo by Monika Grabkowska on Unsplash

    Physics 2-20-24 Archimedesโ€™ Principle

    PHYSICS: So when you were floating in the pool this summer, did you enjoy your fellowship with buoyant forces? ๐Ÿ™‚ From Wednesday – Archimedes’ Principle.

    Great topic for investigation! Speaking of which – what did you find? When the kid jumped out of the boat, did the water level rise, fall, or stay the same? Hmmmm…..


    flickr photo by marlana

    Hon Chemistry 2-16-24 Half Life

    HON CHEMISTRY: So what do you figure is the half-life of a banana? But I digress…. Here’s our work on half-life problems.

    Have fun with the half-life simulation lab! Be sure and post your data in the Half Life Lab web post by the time listed on the syllabus. Don’t forget to include pics and your graph! The lab report is to be submitted as a PDF 2X by the due date listed on the syllabus. ๐Ÿ™‚


    flickr photo by Caro Wallis

    Hon Chemistry Half-Life Simulation Lab

    HON CHEMISTRY: Hey guys – this is where honors chemistry will post results for the Half-Life Simulation lab. You’ll just list your data from the first data table as a comment – just like you comment every week, except this time you are just listing the data from the first data table.

    Remember, you don’t have to use candies; you may use coins or anything else that has two sides. Please note that you are to post the number of “radioactive” nuclides remaining after each toss.

    Just to clarify, everything on the lab sheets will go in your lab report on that you will submit as a PDF to Google Drive and TurnItIn.com – Title, Objective, Procedure, Observations (with data table), Conclusion, and Questions. Don’t forget that your graph needs to be either a full page graph that you do on Excel or a similar program, or you can draw a full page graph on graph paper, scan a very clean, sharp copy and copy it into your lab report. And don’t forget that the analysis questions, calculations, graph, etc., go after your conclusion.

    Happy counting – and wait until AFTER the lab to snack!! ๐Ÿ™‚

    M&M's
    flickr photo by Jared Browarnik

    Hon Chemistry 2-15-24 Radioactive Decay & Half Life

    HON CHEMISTRY: How’d you like writing writing nuclear equations to represent radioactive decay? Maybe a tad bit easier than writing chemical equations? Don’t forget to memorize the nuclear symbols for alpha particles, beta particles (electrons), positrons, neutrons, and protons. Not nearly as bad as polyatomic ions?!?

    Great discussion of half life! Do you need a formula for the problems or can you think through them?


    Photo by Damiano Lingauri on Unsplash