Wednesday, February 25, 2009
Wednes-Day 2
AP Chem- we discussed the relative strengths of Bronsted conjugate acids and bases and used that information to predict whether products or reactants are favored in a given Bronsted acid-base reaction. Equilibrium always favors the consumption of the stronger acid by the stronger base to form MORE of the weaker acid and weaker base.
Tomorrow, we will do a few quantitative examples of equilibrium predictions by using given equilibrium constant values for the acids and bases, Ka and Kb, respectively.
We then did some Periodicity/Descriptive chem by looking at reactions of metallic oxides with water (form hydroxide basic solutions) and nonmetallic oxides with water (form acidic solutions).
We also noted that when pure alkalI or alkaline earth metals react with water, a redox reaction ensues resulting in the formation of a basic hydroxide solution AND hydrogen gas.
Today, I will post another released AP exam question and the previous question's solution on Blackboard.
This afternoon and tomorrow after school, I will hold a descriptive chem massive review.
Bio 6- Unit HW Objectives are now posted; hw is due next Tuesday.
We reviewed the mechanism of a "reflex arc" and then we discussed the structure and function of the parts of the central nervous system.
We then discussed the peripheral nervous system, which we analyze based on the voluntary/SOMATIC regulation part and the involuntary/AUTONOMIC part.
Bio 7/8- Unit HW Objectives are now posted; hw is due next Tuesday.
We discussed and described the structure and function of each part of a neuron. We also saw and discussed a complete reflex arc from stimulus (stimulation) of receptors in the sense organs to sensory neurons to interneurons to motor neurons to effectors (muscles or glands) which causes the response.
We finished up our State Lab, now we can move on to this unit's labs.
Tomorrow, we will do a few quantitative examples of equilibrium predictions by using given equilibrium constant values for the acids and bases, Ka and Kb, respectively.
We then did some Periodicity/Descriptive chem by looking at reactions of metallic oxides with water (form hydroxide basic solutions) and nonmetallic oxides with water (form acidic solutions).
We also noted that when pure alkalI or alkaline earth metals react with water, a redox reaction ensues resulting in the formation of a basic hydroxide solution AND hydrogen gas.
Today, I will post another released AP exam question and the previous question's solution on Blackboard.
This afternoon and tomorrow after school, I will hold a descriptive chem massive review.
Bio 6- Unit HW Objectives are now posted; hw is due next Tuesday.
We reviewed the mechanism of a "reflex arc" and then we discussed the structure and function of the parts of the central nervous system.
We then discussed the peripheral nervous system, which we analyze based on the voluntary/SOMATIC regulation part and the involuntary/AUTONOMIC part.
Bio 7/8- Unit HW Objectives are now posted; hw is due next Tuesday.
We discussed and described the structure and function of each part of a neuron. We also saw and discussed a complete reflex arc from stimulus (stimulation) of receptors in the sense organs to sensory neurons to interneurons to motor neurons to effectors (muscles or glands) which causes the response.
We finished up our State Lab, now we can move on to this unit's labs.
# posted by C @ 10:32 AM 
