by horse Comment Closed

LARN 092 C23D4

NOTICE: Tomorrow’s assignment assumes you have previously successfully installed ActivInspire software on your home computer [See LARN 008].  If you have not done so, make arrangements to do the assignment using a student laptop that does have ActivInspire installed on it, such as the student laptops in the library or in room A235!

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 J92 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 J92 for today is:
    1.  Explain what is the general pattern of reaction for single replacement reactions [a.k.a.single displacement reactions] and how it differs from the general pattern of reaction for double replacement reactions [a.k.a.double displacement reactions].
    2. Refer to one or more examples to make the relationship between replacement reactions [a.k.a.single displacement reactions]and double replacement reactions clear.
    3. Explain what is the general pattern of reaction for combustion reactions and how it differs from the general pattern of reaction for double replacement reactions [a.k.a.double displacement reactions].
    4. Refer to one or more examples to make the relationship between combustion reactions and double replacement reactions clear.

2. a.  Read the instructions for the handout entitled Double Replacement Reactions, the Prediction of the Formation of Precipitates, and the Prediction of the Formation of Water (HOH) and answer questions numbered 1 and 2. Examine how the sample problem, problem number 1, near the bottom of the first page was worked out using a Table of Solubilities of Inorganic Compounds in Water such as the table at the bottom of the page on the reverse side of the Table of Common Ions handout.  Then predict the products for problems numbered 07, 08, 09, 10, 11, and for as many more problems as it takes for you to understand how to use the steps listed on the handout entitled How to balance chemical expressions to balance and check each of the five chemical expressions with ease.

2.b.  Read the instructions for the handout entitled Single Replacement Reactions and answer questions numbered 1 and Examine how the sample problem, problem number 1, near the bottom of the first page was worked out using an Activity Series of the Elements handout such as the table on the top of the reverse side of the Table of Common Ions handout.  Then predict the products for problems numbered 7, 8, 9, 10, 11, and for as many more problems as it takes for you to understand how to use the steps listed on the handout entitled How to balance chemical expressions to balance and check each of the five chemical expressions with ease.

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

1. Refer to the handout entitled How to balance chemical expressions. Find the section labeled Demo 7-2.  For each of the five chemical combinations listed, use the Activity Series of the Elements on the reverse side of your Table of Common Ion handout to predict the products, if any, that will be produced.  Then use the steps listed on the handout entitled How to balance chemical expressions to balance and check the balancing of each of the five chemical expressions.