Finish Iron Ion Lab and Review for Bonding Test
Freewrite. Write about anything you want. Make sure to write at least 7 complete, non-repetitive sentences!
bonding_test_review2017.docx |
more_bonding_practice.docx |
key-more_bonding_practice.pdf |
Finish Iron Ion Lab and Review for Bonding TestJournal Freewrite. Write about anything you want. Make sure to write at least 7 complete, non-repetitive sentences! Finish your Iron (II) vs Iron (III) lab and turn it in! If you weren't here for the lab, download the makeup from the post for last class, or come see me to get the makeup. BONDING TEST ON WEDNESDAY!! Download the review and extra practice below
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Iron (II) vs Iron (III) LabJournal For the compounds below, list how many atoms there are of each element:
Iron (II) vs Iron (III) Lab Today we did a lab testing the different ways Iron (II) reacts vs Iron (III) these are two different cations that Iron will form. To make up the lab, download the make up lab below or see Mrs. Stant to pick it up.
More Practice with Ionic CompoundsJournal
ANNOUNCEMENT: WE WILL HAVE A LAB ON THURSDAY AND OUR TEST ON BONDING (ALL TYPES) ON MONDAY More Practice with Ionic Bonding Work on the Ionic Bonding Practice1 worksheet below. The answer key is at the end of the assignment so you can check yourself. There is also another practice worksheet with answer key. If you need additional review, look in your book on pages 93-97. You can also watch the video posted below. The key to making sure you can do these problems is PRACTICE, PRACTICE, PRACTICE! Make sure you have a solid understanding of how to make Ionic Compounds before Monday!!
Writing and Naming Ionic CompoundsJournal Write the formulas for the following ionic compounds: 1. Potassium Iodide 2. Gallium Chloride 3. Calcium Nitride Polyatomic Ions Review how to write molecular formulas for Ionic Compounds and Polyatomic Ions in your book on pages 93-96. Download the list of common Polyatomic Ions below, glue it into your book. Also on this list are the variable charges for many of the transition metals and the rules for naming Ionic Compounds. Also download the practice worksheet and do the practice problems. Check your answers with the answer key.
Polar Covalent, Metallic, and Ionic BondsJournal What do you do to relax and unwind? Polar Covalent Bonds Electronegativity - the ability of an element to attract (or pull) electrons from other elements. When two elements of very different electronegativities are bonded together, one of the elements will pull the electrons more strongly than the other. In a Covalent Bond, this means that the electrons will spend more time around that element and give that side of the molecule a partial negative charge. The less electronegative element will then have a partial positive charge. This is called polarity. Water is the best example of a polar molecule. The oxygen is very electronegative and has a partial negative charge. The hydrogen will have a partial positive charge. The polarity of water gives water all of its unique properties (cohesion, adhesion, heat capacity, etc.) Metallic Bonds To review the properties of metallic bonds, watch the video below. Ionic Bonds
Some elements lose or gain electrons and become negatively or positively charged. These are called ions. Review the section on ionic bonds in your book. We will continue talking about ionic bonds next class. Covalent Compounds Quiz and LabJournal 1. List 3 properties of a covalent bond (hint: p. 101-103 in book) 2. For SiCl4 a. Draw the dot structure b. Give the shape c. Name the compound IF YOU MISSED THE COVALENT COMPOUNDS QUIZ, ANSWER THE QUESTIONS BELOW TO MAKE IT UP.
Iron Sulfide Lab Today we investigated the properties of Iron and Sulfur. Then we investigated the properties of a new compound that is made when Iron and Sulfur are heated (Iron Sulfide). If you missed the lab, make it up by answering the 5 questions below: 1. Research and find 3 physical properties and 3 chemical properties of sulfur: 2. Research and find physical and chemical properties of iron: 3. What product do you get when you combine iron and sulfur? 4. What are some of the physical and chemical properties of the new product? 5. Does the new product behave like the two elements that formed it? How so? Or Why not? Molecular Geometry (VSEPR Theory) and C0valent ReviewJournal Draw Dot Structures for the following: 1. Nitrogen 2. Sulfur 3. NH3 4. SH2 5. Carbon tetrachloride Molecular Geometry (VSEPR) Theory VSEPR Theory is a way to describe the shape that molecules form. This shape is determined by how many atoms are bonded to a central atom and how many unbonded electron pairs are left on the central atom. Read pages 104-106 in your book about these different shapes. Pay particular attention to the chart on page 105. In class we added 2 addtional shapes to this chart. They are: 1. Trigonal Planar - 3 atoms bonded to a central atom; 0 unshared pairs of electrons on the central atom 2. Linear - 1 atom bonded to another atom; 0 unshared pairs (there are exceptions to this rule for linear shaped molecules, such as CO2). In class we practiced making these shapes out of gummy bears. We also reviewed naming covalent compounds. Download and complete the worksheet "Modeling Covalent Bonds" below. This worksheet is due in class on Friday. THERE WILL BE A QUIZ ON COVALENT COMPOUNDS FIRST THING ON FRIDAY. WE WILL ALSO DO A LAB ON FRIDAY!!!!
Electron Dot Structures and Covalent BondsJournal How was your Winter Break? Did you do anything interesting? Write at least 5 sentences about it. Electron Dot Structures and Covalent Bonds Today we reviewed valence electrons and the Bohr model of the atom. We can use this model to determine how many Valence Electrons (outside electrons) an element has. Writing the Dot Structure for an element (also called a Lewis Dot Structure) is another way to show the valence electrons of an element. Valence electrons are what allows one element to bond with other elements. We can show these bonds using Dot Structures as well. Covalent Compounds are compounds that are formed when elements form covalent bonds with other elements. In a COVALENT BOND the electrons are SHARED between the atoms. Watch the video below to learn how to write dot structures for elements and how to use these to write dot structures for compounds. Then do the Practice Problems attached below.
Disclosure Review and Periodic Table BingoWELCOME BACK for 3rd Quarter!!
There was No Journal today. Today we reviewed the Disclosure for my class. If you would like to see a full electronic disclosure, click on the "Disclosure" link under the Chemistry drop down menu above. You can also electronically sign the disclosure through this link. Periodic Table Bingo We reviewed what we learned last semester about the elements and trends of hte periodic table by playing Peridoc Table Bingo. Quiz yourself to see if you can identify the following elements: I am not really an alkalai metal but since I only have one electron, I behave like them I am a metal with 28 electrons and it has the fascinating property of magnetic shielding I am a member of group 4A/14, I am often mistaken for the end of your pencil I am the only metal liquid at room temperature I have 20 protons and am found in your teeth and bones I am a gas with an atomic number of 9 I am the first element in the fourth period used in making fertilizer I am a gas with 8 protons and 8 neutrons My atomic mass is 35 and I am a member of the halogen family I have 2 electrons in the first shell, 8 in the second and 6 in the third My atomic number is 79 |
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