LARN 150 C38D2

Start the following in class:

If you have not already done so, please print out your In-Progress Grading Task Summary for Marking Periods (Terms) 1, 2, and 3, along with the Term 4 Grade Detail for activities accomplished thus far.  Show this document to your parents or guardians and discuss your progress.  Then print your circled hand in number followed by your name in the upper right corner of the first page, have your parent(s) or guardian(s) sign the in-progress report, label the identity of who signed the report (dad, mom, or guardian), bring the parent/guardian signed progress report in tomorrow and give it to me in class.  If you are not meeting me for class on this particular day, please drop off the labeled, signed report with me before or during school in room A235.

1.  The required learning journal questions for today, J150, is as follows.  Read pages R20 and R21 on the properties,and sources of the elements carbon and silicon found in Group 14 (IVA).  On your learning journal page record the answers to these two numbered questions:

a. What is the most interesting fact you read about?  Please make your response to this question longer than one sentence.

b. What makes this so interesting to you?  Please make your response to this question longer than one sentence.

c. What is one use for one of the aforementioned nonmetals that you either were not familiar with or were least familiar with?  Please make your response to this question longer than one sentence.

2. In your chapter 18 learning packet that you received in class, carefully work through and fill in all answer blanks for the worksheets entitled

  • Reaction Progress Curves, 
  • Potential Energy Diagrams, 
  • Reaction Rate Review Activity (word bank / fill in), and 
  • Potential Energy Diagrams for Reactions.

3.  Review your notes on reaction rates and mechanisms.  In your Learning Log do problems E18-65abc, E18-66, and E18-67 on page 581.

After you have finished responding to the formative assessment questions and problems, check page R98 of the text and check each of those problems that you can by writing in either a check mark (√) or a correction in green ink.  Write down any question that you still have so that you can ask about it in class.  In the margin of your notebook page, circle the number of formative assessment questions do not have a suggested response given and check your response with that of your classmates when you come to class.

Recommended for those who have time left in their 45 minute study period, but not required of all:

  1. Check out the student made Quizlet for chapter 18 at https://quizlet.com/206822467/ch-18-reactions-equilibrium-flash-cards//.  Do all the definitions reflect a thorough and correct understanding?
  2. How do the properties of covalent molecular substances with hydrogen bonding typically differ from those covalent molecular substances that form molecules whose van der Waals attractive forces only weakly attract other molecules?
  3. Think about the sixteen properties of covalent molecular substances listed on the Properties to be understood worksheet describing differences in the properties of metals, ionic compounds, covalent network solids, and covalent molecular compounds.  Continue to study this handout for understanding and review how the typical properties of members of these classes of compounds depend on whether the compound has localized or delocalized electrons, and upon whether strong metallic, ionic, or covalent bonding or weak van der Waals forces of attraction are predominant between representative particles of the substances.  Try to understand how each property of a given covalent molecular substance is related to the groups of covalently bonded atoms that form molecules whose van der Waals attractive forces only weakly attract other molecules.