by horse Comment Closed

LARN 053 C14D1

Start the following in class:

1.  In your Journal Notebook write your journal entry on sheets of three holed 8.5 inch by 11 inch ruled paper.

  • In the upper right corner white space of each upward facing page, use a blue or black pen to write your hand in number within a circle followed by your name. 
  • To the left of the marginal line, print J53 and circle it.
  • Each journal entry should either be at least a paragraph of exemplary writing and penmanship concerning a single topic, or be a concept map relating chemistry terms. Begin each day’s paragraph with a topic sentence, follow with explained instances, and close with a focused summary statement.
  • The required journal focus topic J53 for today is:

Why are ionically bonded compounds generally solids at room temperature with relatively high melting points? Use the concept of nondirectional (or omnidirectional) bonding in your response.  Use examples to clarify each idea that you express in your learning journal and make sure that you explain how each example demonstrates the concept being considered.

2.a. Go to https://socratic.org/chemistry to research the topics brought up in section 7.2 of your text, OR use the PQ5R or SQ5R method to prepare study guides for text section 7.2 on Ionic Bonds and Ionic Compounds, pages 194 through 200 in your chemistry text.  You may record vocabulary entries in the body of your study guide, or you may check them off on the chapter 7 vocabulary list as you think about the meanings of the terms and add any notations to the vocabulary list for clarifications sake.

2.b. Writing in blue or black ink, place your hand in number in a circle followed by your name in the upper right white space of a piece of three holed composition paper in your learning log that hasn’t been written on.  Place the page reference for the problems to be considered to the left of the red marginal line on the first blue line.  Centered on the first blue line, write a descriptive title for the learning activity such as Section [chapter #.section#] Responses.  Before you write your response to each question or problem listed below, write its designation to the left of the red marginal line as listed below, followed by your response in ink to the right of the marginal line.

  • Study Conceptual Problem 7.2 on page 196 and then show your work for practice problems I7-12a and b (In chapter 7, problems 12a and b) and I7-13.
  • In the Section Assessment 7.2 on page 199, read, analyze, and show your work for practice problems I7-14, I7-15, I7-16, I7-17, I7-18abcd, I7-19abcd, I7-20abcd, I7-21, and I7-22.
  • After you are finished, check page R87 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 as we do in class.
  • Some questions do not have a suggested response given.  For each such question, circle the number of the question in the margin of your notebook paper and check your response with that of your classmates when you come to class.

3. Log onto the ChemThink web site http://simbucket.com/chemthinkserver/chemthink/ to do the tutorial and question set on Ionic Bonding.

  • Choose menu selections:  The Atom > Ionic Bonding Tutorial.  [If you are logged onto the ChemThink web site, you do this by clicking on the green triangle in the white circle to the right of the displayed module’s name.]
  • If you do not have a copy of the worksheet that goes with this module, click on the provided link to the ChemThink worksheet for this module or, if that link doesn’t work, locate it in the Student Resources > Handouts > ChemThink Formative Assessment Note Sheets folder. Download the worksheet, and print off a copy.
  • Place your hand in number and name in ink in the upper right corner of the worksheet.
  • Now work your way through the online tutorial.  You will have to answer each problem correctly to advance to the following page.  FYI: When there are check boxes given before possible correct responses in either the tutorial or the problem set, more than one response may be correct, so carefully consider each response before submitting your answers.
  • Record a response to each question asked on the worksheet.
  • Then choose the menu selections:  The Atom > Ionic Bonding Question Set to formatively assess the understanding that you have built up by doing the Tutorial.  Try to do each problem in the Problem Set correctly during your first attempt at working  your way through the problem set.  If you get a problem wrong, focus on understanding why each problem in the question set is answered in the way that it is.   Your goal is eventually to have a deep enough understanding to score a 10 out of 10. If you did not attain that level of understanding the first time through, review some more, and do the problem set again until you have mastered the content with a 10 out of 10 score.
  • Place the worksheet in the Notes section of your 3 ring binder and bring it to class.

Diagramfix:

If your Chrome browser displays the questions but not the diagrams for a ChemThink assignment, it is because Chrome needs to be updated to a version that supports the webgl 2.0 standard.  Actions you can do to try to get the diagrams displaying:

  1. Clear the Chrome cache:
    1. Hold down CTRL+SHIFT+DELETE
    2. Enter All time
    3. Check all boxes
    4. Click on Delete
    5. Close the Chrome browser
    6. Open the Chrome browser and go to and log on to the ChemThink website
  2. If that doesn’t work:
    1. Enter Chrome://flags in the address bar
    2. Search for webgl
    3. Enable Webgl 2.0 compute
    4. Click Relaunch at the lower right.
    5. Go to and log on to the ChemThink website

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

1. a. Continue to review the meanings of the words on the chapter 1, chapter 2, chapter 3,chapter 4, chapter 5, and chapter 6 vocabulary lists. Place a – symbol in front of each word that you have to study more,and a change the- to a + symbol in front when you have demonstrated mastery over the word to a study buddy, parent, or friend.

1.b. Study the Key Concepts given on pages 33, 57,95, 121, 148, and 180 of the text.

1.c. Review those concepts that we have discussed in class that are on your demonstration notes and on the note sheet handout that describes what a substance, element, atom, compound, formula unit, phase, coarse mixture, colloidal suspension, solution, aqueous phase, chemical change [as different from a physical change],chemical reaction, reactant, product, word equation, and formula unit equation. Go over each of these concepts with your study partner.

1.d. Study the SI prefixes and their meanings until you can readily explain the meaning of each listed SI prefix as a numerical multiplier.

1.e. Think about the sixteen properties of ionic compounds listed on the Property to be understood worksheet. Try to understand how each property is related to the nature of ionic bonding. Be ready to ask your teacher in class specific question(s) about the one(s) that you do not understand.