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Day 8 - Thursday, April 23

Welcome to Day 8 of eLearning. The goal is to deepen our understanding of reaction rates and the Collision Model. There is a YouTube video to help you with the instructional component. And there is a Concept Builder to ensure that you comprehend. Finally, if you didn't do it on Monday, there is a Method of Initial Rates video and accompanying WebAssign.

NOTICE: Packet pages are available online. They can be printed as needed. You would not have any of the pages below since we started this unit after the quarantine started.

Here's What to Do:

  1. Collsion Model (15 minutes)

    Mr. H discusses the Reading Guide on Reaction Rates and the Collision Model. He does so with an eye for getting you through the Concept Builder parts. If you would like to grab a copy of the Reading Guide answer key, see the link below.

    YouTube Video:

    Reading Guide Answer Key:

  2. Collision Model Concept Builder (20-35 minutes)

    • Go to
    • Log into your account. Go to the Tasks and Courses page.
    • Click the link to the Collision Model Concept Builder.
    • Do all three activities.


    Pro TIP: The Help Me! button of every question screen opens a page with information specific to the question. Focus on the How to Think About This Situation section of the Help page.  Most of the time it is very detailed to the point of telling your the answer. 

  3. Method of Initial Rates - Video + WebAssign     (20 min - 30 min)

    (You may have already done Activity 3; it was an option on Monday's Lesson.)

    Understanding reaction rates allow chemists and chemical engineers to control it. Sometimes you want a reaction rate to occur fast - like for the production of a product that you are going to sell by the ton. Sometimes you want a reaction rate to occur slow - like the rusting of the body of that Dodge Ram pick-up truck. And other times, you just want to simpy be able to exercise exquisite control of the rate - like the biochemical reaction of the ADHD medicine in the bloodstream of a child. So how do Chemists study and understand reaction rate? We are going to find out. Watch Mr. H's short video and do the accompanying WebAssign.


    Additional Worked Out Examples (on paper, no video)

            Example 1:

            Example 2:

            Example 3:

*** Take attendance by 1 pm. Check your email for an attendance form from the Attendance office.

Coming Next Class: Equilibrium - Online Spreadsheet Activity + Reading Guide

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