The unit exam (pre-biodiesel)

The unit exam was a doozy. Some of the structures I just wasn't confident on their properties, but most of the test really wasn't that bad. Alarge part of this unit was solely based on structure. But one of the major components was quickly recognizing what the problem was dealing with and applying the proper steps.

Modeling lab work

Yesterday we did a lab in the library on physically modeling the molecules we have been working on. Some of them were quite confusing, but with team spirit (and mrs Frank giving us the answers) we prevailed. Altogether this was an interesting experience that reminded me of the random desk toys of molecules in movies. This little project was making figure molecules properly and identifying all of the bind and electron placement. It is good practice for the test and is putting us up against problems we haven't seen before. The Sf6 molecule for instance has 6 bond but 8 planes altogether. this can be easily confused and is a good area to start studying for the test.

Intro to bonding

Our new unit is all about bonding. This means we are going to go into the shape and structure of each molecule. So far though we have only had simple molecules like CO2, nothing large like NaHCO3. i believe we will start to get into more of these larger molecules later into the unit. This unit does not seem like it will get much harder. The key to it will be remembering the patterns of the molecules, and the labels that go with them. HERE are some of the basics to the bonding process to go over.