by horse Comment Closed

LARN 055 C14D3

ATTENTION:  If you have not already done so, locate three (3) shiny United States pennies that were minted after 1982, the shinier the better, to experiment with.  Bring these pennies in to transform two of them into souvenir alloys celebrating your taking chemistry this year!  The pennies will be treated to form souvenirs of chemistry class.  If the pennies you bring in are dull, you will have the clean them.  Store them temporarily in your grommeted, three hole zipper pen case until it is time to do the laboratory activity.

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 J55 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 question J55 for today is

a. How is the concept of a cloud of fluid, drifting, mobile electrons that are delocalized in overlapping atomic orbitals that extend throughout a sample of a metal used to explain the conductivity of electricity and heat by the metal?

b. Give an example of how the concept of  a cloud of fluid, drifting, mobile electrons that are delocalized in overlapping atomic orbitals that extend throughout a sample of a metal explains the conductivity of electricity and heat by the metal.

c. How is the concept of a cloud of fluid, drifting, mobile electrons that are delocalized in overlapping atomic orbitals that extend throughout a sample of a metal used to explain the ductility and malleability of the metal?

d. Give an example of how the concept of  a cloud of fluid, drifting, mobile electrons that are delocalized in overlapping atomic orbitals that extend throughout a sample of a metal explains the ductility and malleability the metal.

2.a. Go to https://socratic.org/chemistry to research the topics brought up in section 7.3 of your text, OR use the PQ5R or SQ5R method to prepare study guide for text section 7.3 on Bonding in Metals. Read section 7.3 in your chemistry text, pages 201 through 206, and as you do, create a study guide using the SQ5R or PQ5R method explained in class and on the distributed handout packet.

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.

  • In the Section Assessment 7.3 on page 203, read, analyze, and show your work for practice problems I7-23 (In chapter 7, problem 23), I7-24, I7-25, I7-26, I7-27, I7-28, and I7-29.
  • 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 Formulas 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 Formulas 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.
  • There still may be one or more programming errors with this module.  If the module does not accept a particular answer for ion charges such as 2+ and 1- as a correct answer, enter your response as +2 and -1 instead, and move on!
  • Place the worksheet in the Notes section of your 3 ring binder and bring it to class.

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

1.  In the ionic bonding informational packet, turn to the last page (page 24) and fill in just the Ionic Bonding column on the worksheet entitled “Property to be understood” using blue or black ink.

Think about the sixteen properties of ionic compounds listed.  Relate each property of an ionically bonded substance to its positive and negative ions attracting each other strongly in all directions.  In your Learning Log record any question(s) you would want to ask your teacher in class about the above mentioned properties.