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CHEMISTRY - MR HAAS - BRIMM MEDICAL ARTS HS

 

PLEASE EMAIL WITH ANY QUESTIONS YOU MAY HAVE AT JHAAS@CAMDEN.K12.NJ.US or you can call me at 856-481-2542

 

I WILL BE AVAILABLE MON-FRI FROM 9:00 to 9:40 AM USING ZOOM VIDEO CONFERENCING. YOU CAN ACCESS THE CONFERENCE ROOM BY CLICKING THIS LINK - https://zoom.us/j/121281078  

 

WHEN POSSIBLE, PLEASE MAKE EVERY EFFORT TO SUBMIT YOUR WORK VIA THE SUMMIT LEARNING PLATFORM. IF YOU CANNON ACCESS SUMMIT AT HOME YOU CAN SUBMIT THE ASSIGNMENT TO BE VIA EMAIL.

 

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WEDNESDAY - 3/18/20 - COVALENT COMPOUND QUIZ

 

Today you will be taking a quiz on the characteristics of covalent molecules and covalent networks as well as how to write their names and formulas. Click on the link below to access the quiz. Please open the document and then save a copy with your name in the title of the document. After you take the quiz, share the document with jhaas@camden.k12.nj.us

 

Link to quiz - https://docs.google.com/document/d/1y-019EW4ukUFLuOMpeidpuBbaD5AQlzCfT_IW0IC7u8/edit?usp=sharing 

 

 

THURSDAY - 3/19/20 - DRAWING LEWIS STRUCTURES -  

 

Today you will be writing down how to draw Lewis Structures by writing down the rules and watching a few examples on YouTube.

 

1 - Create the heading "How to Draw Lewis Structures" and copy down the following steps.

   

   1. Find the total number of electrons in the compound.

   2. The central atom is the least electronegative, excluding H because it can only make one bond.

   3. Connect the other atoms to the central atom using a single bond.

   4. Count each single bond as a pait (two) electrons.

   5. Add electrons to the outer atoms to give each one 8, a full electron shell. 

   6. Do the same for the central atom.

   7. Check: Does each atoms have a full outer shell?

 

 

2 - Next, watch the following video on Lewis Structures - https://www.youtube.com/watch?v=Sk7W2VgbhOg

 

3 - Then watch this video and follow along with how to draw the Lewis Structure for H2O and follow along by drawing it yourself in your notebook to give yourself an example - https://www.youtube.com/watch?v=rb4y1Xdok4Y

 

 

 FRIDAY - 3/20/20 -  DRAWING LEWIS STRUCTURES - 

 

Today you will practice drawing some Lewis Structures. You can draw the structures in your notebook and upload the drawings to Checkpoint #4 of the Covalent Compounds Project in Summit. The questions are here as well as in the document in Checkpoint #4.

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  1. Draw the Lewis Dot Structure for the compound NCl3.

  2. Draw the Lewis Dot Structure for the compound CH4.

  3. Draw the Lewis Dot Structure for the compound H2O.

  4. Draw the Lewis Dot Structure for the compound N2F4.

  5. Draw the Lewis Dot Structure for the compound C2H6.

 

MONDAY - 3/23/20 - LEWIS STRUCTURES W/ DOUBLE & TRIPLE BONDS - 

 

Today you will be learning what molecules form double and triple covalent bonds. You will be taking notes on the YouTube video and then writing down an example of each type.

 

1 - Watch the following video and take notes on Double and Triple Bonds - https://www.youtube.com/watch?v=tQuUlLUqnZc

 

2 - Draw an example of a double covalent bond - https://www.youtube.com/watch?v=cIuXl7o6mAw

 

3 - Draw an example of a triple covalent bond. - https://www.youtube.com/watch?v=uwYFerkqSnk

 

TUESDAY - 3/24/20 - LEWIS STRUCTURES W/ DOUBLE & TRIPLE BONDS - 


Today you will practice drawing some Lewis Structures. You can draw the structures in your notebook and upload the drawings to Checkpoint #5 of the Covalent Compounds Project in Summit. The questions are here as well as in the document in Checkpoint #5.

 

 

  1. Draw the Lewis Dot Structure for the compound N2F4
  2. Draw the Lewis Dot Structure for the compound CO
  3. Draw the Lewis Dot Structure for the compound SF6
  4. Draw the Lewis Dot Structure for the compound SCl4?

  5. Draw the Lewis Dot Structure for the compound Si2Br6?

  6. Draw the Lewis Dot Structure for the compound H2S?

 

WEDNESDAY - 3/25/20 - DIATOMIC MOLECULES

 

Today you will be learning what diatomic molecules are. There are seven diatomic molecules that are important to know. Please read the following article and then watch the YouTube video. You will need to know the seven diatomic molecules moving forward.

 

1 - Read the article - https://sciencing.com/what-is-a-diatomic-molecule-13712153.html

 

2 - Watch the video - https://www.youtube.com/watch?v=MV3uXga-u-s

 

THURSDAY - 3/26/20 - DIATOMIC MOLECULES

 

Today you will be completing Checkpoint #7 in the Covalent Compounds Project. 

 

Draw the Lewis Structures for each of the diatomic molecules and then answer the following questions: Which of these molecules have single bonds? Which have double bonds? Which have triple bonds? How can use this information to compare the size of diatomic molecules? Which diatomic molecule(s) are the largest? Which are the smallest? How do you know?

 

 

FRIDAY - 3/27/20 - RESONANCE STRUCTURES - 

 

Today you will be learning what a resonance structure is and how to draw them for elements. Watch the following video and takes notes. Be sure to copy down the example of the acetate ion from the video. 

 

1 - Watch video - https://www.khanacademy.org/science/organic-chemistry/organic-structures/formal-charge-resonance/v/resonance-intro-jay

2 - Write down the example of the resonance structure for acetate (in the video). 

 

MONDAY - 3/30/20 - RESONANCE STRUCTURES & BOND LENGTH - 

 

Today you will learn how the number of bonds in a molecule affects the space between two molecules. Take notes of the video and copy down the example of CO3-2 ion from the video.

 

1 - Watchhttps://www.youtube.com/watch?v=AprpByVTlek

2 - Write down the CO3-2 ion example (from video) 

 

 

TUESDAY - 3/31/20 - RESONANCE STRUCTURE & BOND LENGTH - 

 

 

Today you will practice drawing some Lewis Structures. You can draw the structures in your notebook and upload the drawings to Checkpoint #6 of the Covalent Compounds Project in Summit. The questions are here as well as in the document in Checkpoint #8.

 

1. Draw the Lewis Dot Structure for NO2-

         a. How many resonance structures does  Nitrite have?

         b. Draw one of Nitrite's resonance structures.

2. Draw the Lewis Dot Structure for NO3-

         a. How many resonance structures does  Nitrate have?

         b. Draw one of Nitrate's resonance structures.

         c. How do the bond lengths within the nitrate ion compare?

 

WEDNESDAY - 4/1/20 - COVALENT BONDING LAB - 

 

Today you will be completing a virtual lab on covalent bonds. Click the link to open the lab and put the answers to the questions into the document in checkpoint #9.

 

1 - Link to lab - http://www.glencoe.com/sites/common_assets/science/virtual_labs/E20/E20.html

 

2 - Checkpoint #9 questions: 

 

Procedure 

 

   1. Click the Video button. Watch the video about chemical bonds.  

   2. Click the Show Labels button to see labels on the atomic model. 

   3. Select one of the four elements. 

   4. Set the number of protons in the nucleus of the atomic model by clicking the up and down arrows. 

   5. Calculate the number of neutrons in the nucleus. Set the number of neutrons by clicking the up and down arrows. 

   6. Click the up and down arrows in the Electronic Energy Levels to fill each energy level with the atom's available number of electrons. Start with the lowest energy level, closest to the nucleus.    

   7. Determine whether the atom is chemically stable or will form chemical bonds with other atoms. Click the Yes or No button. 

   8. Click the Check button to evaluate your work. 

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THURSDAY - 4/2/02 - EXCEPTIONS TO THE OCTET RULE - 

 

While most atoms are most stable having eight electrons there are some electrons that can become stable with fewer than eight electrons, or more. Today you will watch a short video that explains theses exceptions to the Octet Rule. 

 

Link to video - Octet Rule Exceptions - https://youtu.be/AMJiGX1uTJE 

 

FRIDAY - 4/3/20 - EXCEPTIONS TO THE OCTET RULE

 

Today you will be practicing working with lewis structures that do not follow the Octet Rule. Below you can find the questions for Checkpoint #10 called “Exceptions to the Octet Rule.”

 

  1. Draw the Lewis Structures for the following covalent compounds. 

    1. PF3

    2. ICl4

    3. PCl5

    4. H2O

    5. SF6

 

  1. Which of the above elements follow the octet rule? Which do not?

 

  1. For the above compounds that do not follow the octet rule, how many electrons surround the central atom of each compound?

 

MONDAY 4/6/20 - COVALENT COMPOUNDS QUIZ #2

 

Today you will complete the Covalent Compounds Quiz #2. The questions are here as well as in Checkpoint #11 of the Covalent Compounds Project. You can submit them to me whatever way is easiest for you. 

 

COVALENT BONDING QUIZ #2

 

  1. Draw Lewis structures for the following compounds:

    1. NH3

    2. BrO3 1-

    3. BF3

 

  1. Bonds between atoms can be single, double or triple. Compare each bond in terms of energy, length, and the number of shared electrons.

 

  1. Consider CO and CO2:

  1. Draw the Lewis Dot Structure for each molecule.

  2. How does the bond length compare in the C-O bonds compare in carbon monoxide vs carbon dioxide?

4. Draw the Lewis Dot Structure for the compound AsF5.

5. Consider the Lewis Dot Structure for NO3-

  1. Draw one of Nitrate's resonance structures.

  2. How many resonance structures does Nitrate have?

  3. How do the bond lengths within the nitrate ion compare?

 

TUESDAY 4/7/20 -  VSEPR THEORY & MOLECULAR GEOMETRY

 

Today you will be learning about VSEPR Theory and Molecular Geometry. Please watch the following videos and take notes to prepare for completing the virtual lab in Checkpoint #12. Please watch the video below and take notes on how to use a lewis structure to determine VSPER numbers and the shape of a molecule. This is a difficult concept and I believe that most of you will need some help. Please do not hesitate to contact me at 856-481-2542 if you need more explanation. 

 

Link to video VSEPR Theory Introduction - https://youtu.be/nxebQZUVvTg 

 

WED & THURS 4/8/20 - 4/9/20 - VSEPR THEORY & MOLECULAR GEOMETRY

 

You will have today and tomorrow to complete this lad. There are three parts total to the lab and it can be tricky. You will need a computer to complete this assignment. If you don’t have access to a computer right now please contact me for an alternate assignment. Again, please do not hesitate to reach out to me with any questions you might have about the assignment. You can reach me at 856-481-2542.

 

Here is a link to the lab - https://bit.ly/2QZ9rRv 

 

You will need to open the lab and “Save a Copy” of the file to share with me in order to edit the document.