Wednesday, May 28, 2008
Tues-Day 2
Bio- welcome back from our extended weekend!
Today we discussed the part D section of the LE Regents; part D questions cover the FOUR required state labs. We focused mainly on the Diffusion/Osmosis lab. We defined the processes, gave examples and discussed TRANSPORT, the life process that most frequently involves diffusion.
Chem 7/8- we discussed three applications of electrolytic cells:
the electrolysis of molten salts to produce active metals in their atomic (not cationic) form and active non-metals in their molecular form.
electroplating of a precious (relatively inactive) metal onto an object that consists of a more reactive, cheaper metal.
the electrolysis of water, which decomposes H2O to its elements H2 and O2; these gases can then be stored and used as combustible fuel in H2-powered vehicles.
We then did a lab involving the spontaneous single cationic replacement of various metals.
Chem 9- we discussed three applications of electrolytic cells:
the electrolysis of molten salts to produce active metals in their atomic (not cationic) form and active non-metals in their molecular form.
electroplating of a precious (relatively inactive) metal onto an object that consists of a more reactive, cheaper metal.
the electrolysis of water, which decomposes H2O to its elements H2 and O2; these gases can then be stored and used as combustible fuel in H2-powered vehicles.
Today we discussed the part D section of the LE Regents; part D questions cover the FOUR required state labs. We focused mainly on the Diffusion/Osmosis lab. We defined the processes, gave examples and discussed TRANSPORT, the life process that most frequently involves diffusion.
Chem 7/8- we discussed three applications of electrolytic cells:
the electrolysis of molten salts to produce active metals in their atomic (not cationic) form and active non-metals in their molecular form.
electroplating of a precious (relatively inactive) metal onto an object that consists of a more reactive, cheaper metal.
the electrolysis of water, which decomposes H2O to its elements H2 and O2; these gases can then be stored and used as combustible fuel in H2-powered vehicles.
We then did a lab involving the spontaneous single cationic replacement of various metals.
Chem 9- we discussed three applications of electrolytic cells:
the electrolysis of molten salts to produce active metals in their atomic (not cationic) form and active non-metals in their molecular form.
electroplating of a precious (relatively inactive) metal onto an object that consists of a more reactive, cheaper metal.
the electrolysis of water, which decomposes H2O to its elements H2 and O2; these gases can then be stored and used as combustible fuel in H2-powered vehicles.
# posted by C @ 12:46 AM 
