Tuesday, December 13, 2011
Tues-Day 2
AP Chem - we played the "formal charge"/fake charge game that sometimes works in determining the more/most significant resonance structure that contributes to the true structure of a molecule.
We then showed the three exceptions to the octet rule in which stable molecules are formed with less than an octet on the central atom (or on H): H, Be, and B molecular compounds.
Bio - tomorrow (Wednesday) is our unit exam on Photosynthesis and Cellular Respiration.
See Edline for additional practice files.
Today we looked at the results of our Elodea photosynthesis experiment in which we used BTB acid-base indicator to detect the consumption or lack of consumption of the acid-forming molecule, carbon dioxide. Consumption of that molecule is evidence that photosynthesis occurred because CO2 is consumed in the synthesis of glucose.
We also went over some of the common hw errors.
We then showed the three exceptions to the octet rule in which stable molecules are formed with less than an octet on the central atom (or on H): H, Be, and B molecular compounds.
Bio - tomorrow (Wednesday) is our unit exam on Photosynthesis and Cellular Respiration.
See Edline for additional practice files.
Today we looked at the results of our Elodea photosynthesis experiment in which we used BTB acid-base indicator to detect the consumption or lack of consumption of the acid-forming molecule, carbon dioxide. Consumption of that molecule is evidence that photosynthesis occurred because CO2 is consumed in the synthesis of glucose.
We also went over some of the common hw errors.
# posted by C @ 2:01 PM 
