SciHawks

Bio 3/6 - we began our new Biochemistry unit by looking at the structure of atoms, the smallest unit of an element that has the properties of that element. We then looked at two types of compounds that can form from two or more elements: ionic compounds (salts), which are lattices/3-D geometric arrangements of cations and anions that are ionically bonded to each other in all directions, AND molecules, which are two or more NONmetal atoms that are COVALENTLY bonded together by SHARING valence electrons. Unlike ionic compounds, moleculare compounds are made up of individual and separate molecules that are not bonded to each other, e.g. each water molecule contains two H atoms covalently bonded to ONE O atom and no two water molecules are bonded together even in a solid ice cube.
We listed the six most important biological elements and the major bio-molecules that contain them.
We stated the definition of organic (CH) and inorganic compounds and went over some of the major biological organic compounds: proteins, nucleic acids, lipids, and carbohydrates.

AP Chem- we finished the limiting reactant stoichiometry problem, using the concept of "moles of reaction". The reactant with the smallest mole of reaction ratio (actual divided by theoretical) must be the limiting reactant and MUST be used to determine the quantities of products formed.
We then did the typical questions from these problem types: amount of excess reactant left over, quantity of each product formed, and (given an actual quantity of product made) the percent yield.