Week 6 by Kaitlin

Although this week has been a busy one our Chem II class accomplished many things. On Monday, we completed our chapter 7 & 8 test which consisted of Periodic Properties of the Elements and Concepts of Chemical Bonding. During our class period on Tuesday since many test scores contained much lower grades than they should have been we were given time to make corrections. With this, if we were to get the corrected question right we were get half of our points back for the problem. This took up both periods of that day. On Wednesday we started to go over Chapter 9 notes. Chapter 9 goes into the Molecular Geometry and Bonding Theories. Within the two periods we covered a good bit of the notes. We talked about molecular shapes which can consist of molecules that can be linear or bent. Other molecules can be trigonal planar, trigonal pyramidal, and t-shaped. We talked about distances to which electrons would be from each other by dividing the amount of pairs by 360 degrees. Ms. Harris also gave us a very helpful worksheet which her college professor from Penn State Schuylkill gave her. This worksheet helped us to determine certain molecular shapes with certain formulas given. On Thursday Ms. Harris was not in school. Luckily we had our substitute Mr. Sanchez who is a chem major. We were handed a worksheet on Lewis Structures and Molecular Shapes which we completed during class. During the second half of our class Mr. Sanchez went over the worksheet with us and discussed how to figure out each problem. Tomorrow with Ms. Harris' return we will continue with our Chapter 9 notes of Molecular Geometries and Bonding Theories and go into Electron Domains, Valence Shell Electron Pair Repulsion Theory, Electron-Domain Geometries, etc. Then a four day weekend is ahead of us!