Friday, December 9, 2011
Thurs-Day 2
AP Chem - we did additional examples of Lewis structures for atoms and ions; we are simultaneously emphasizing Coulombic repulsion of domains (bonding or non-bonding) of electrons around the CENTRAL atom in determining the electronic geometry; ultimately, electronic geometry determines the molecular geometry, both of which determine the molecular polarity, types of intermolecular attraction(s), and thus the physical and chemical properties of the molecules.
Check Edline (starting Friday afternoon) for a brief assignment on Lewis structures and predicting chemical reactions, to be handed in on Monday.
Check Edline (starting Friday afternoon) for a brief assignment on Lewis structures and predicting chemical reactions, to be handed in on Monday.
Bio - we revisited the structure of the leaf with respect to showing how the various structures within the leaf work together to maintain homeostasis in the plant; we examined the interactions among the structures under conditions of insufficient water/moisture (drought/dry conditions) and also under conditions of sufficient water/moisture.
See Edline for additional practice test files that may also help you with your hw.
NOTE: We did not yet cover hw objective 22 regarding the pH change in the water due to the CO2 produced by aerobically respiring aquatic organisms. We will cover that on Monday, so that question can be omitted from your hw.
NOTE: We did not yet cover hw objective 22 regarding the pH change in the water due to the CO2 produced by aerobically respiring aquatic organisms. We will cover that on Monday, so that question can be omitted from your hw.
# posted by C @ 8:18 AM 
