Tuesday, January 3, 2012
Tues-Day 1
AP Chem - welcome back, and Happy New Year 2012!
We reviewed coordinate covalent bonds, defined their formation via Lewis acids and bases, and saw that polyatomic ions usually have some "coordinate" covalent bonds from the central atom.
We then discussed the ionic "character" of polar covalent bonds,
and then the covalent "character" of ionic compounds of small highly charged cations and large polarizable anions.
We discussed "covalent network solids", consisting of a LATTICE of covalently bonded C or Si atoms (sometimes O is in the lattice too).
Bio - we began our unit on nutrition (especially digestion) and regulation (the endocrine controlled part).
We reviewed autotrophic and heterotrophic nutrition, ingestion, digestion, and egestion (not excretion!), and intracellular (simple organisms) digestion vs. extracellular (in "tubes" of complex organisms) digestion.
We saw two videos that give an overview of the digestive system.
We reviewed coordinate covalent bonds, defined their formation via Lewis acids and bases, and saw that polyatomic ions usually have some "coordinate" covalent bonds from the central atom.
We then discussed the ionic "character" of polar covalent bonds,
and then the covalent "character" of ionic compounds of small highly charged cations and large polarizable anions.
We discussed "covalent network solids", consisting of a LATTICE of covalently bonded C or Si atoms (sometimes O is in the lattice too).
Bio - we began our unit on nutrition (especially digestion) and regulation (the endocrine controlled part).
We reviewed autotrophic and heterotrophic nutrition, ingestion, digestion, and egestion (not excretion!), and intracellular (simple organisms) digestion vs. extracellular (in "tubes" of complex organisms) digestion.
We saw two videos that give an overview of the digestive system.
# posted by C @ 1:53 PM 
