Tuesday, January 09, 2007
Tuesday, Day 6
AP: look for descriptive chem practice files on the website later. Commence practice for quiz later this week.
Honors: we covered the remaining required molecular geometry types and then began to relate BOND POLARITY and MOLECULAR GEOMETRY to MOLECULAR POLARITY. A simple rule to heed for any molecule that we will see in this course (it works for ALMOST all molecules in general): In your Lewis structure of a molecule, IF there are one or more lone (NONBONDED) pairs of electrons on the central atom, the molecule will guaranteed be polar because there will definitely be a partially negatively charged region/side by the nonbonded/lone pair(s) of electrons. Tomorrow, we will relate the polarity of the molecules to the TYPE of intermolecular attractions that are experienced among and between molecules.
Thursday, we will have a test on some of the material from the last test and all topics since that test (see notes and homework).
Regents: we covered the remaining required molecular geometry types and then began to relate BOND POLARITY and MOLECULAR GEOMETRY to MOLECULAR POLARITY. A simple rule to heed for any molecule that we will see in this course (it works for ALMOST all molecules in general): In your Lewis structure of a molecule, IF there are one or more lone (NONBONDED) pairs of electrons on the central atom, the molecule will guaranteed be polar because there will definitely be a partially negatively charged region/side by the nonbonded/lone pair(s) of electrons.
On Thursday, we will have our second bonding exam. There will be many questions on naming salts, molecules, acids, bases, and hydrates. The test will cover polar and nonpolar covalent bonds, ionic bonds, metallic bonds, molecular geometry, and a little bit of molecular polarity (or lack thereof).
Study your notes and do ALL of the homework problems/worksheets that have been posted!
Honors: we covered the remaining required molecular geometry types and then began to relate BOND POLARITY and MOLECULAR GEOMETRY to MOLECULAR POLARITY. A simple rule to heed for any molecule that we will see in this course (it works for ALMOST all molecules in general): In your Lewis structure of a molecule, IF there are one or more lone (NONBONDED) pairs of electrons on the central atom, the molecule will guaranteed be polar because there will definitely be a partially negatively charged region/side by the nonbonded/lone pair(s) of electrons. Tomorrow, we will relate the polarity of the molecules to the TYPE of intermolecular attractions that are experienced among and between molecules.
Thursday, we will have a test on some of the material from the last test and all topics since that test (see notes and homework).
Regents: we covered the remaining required molecular geometry types and then began to relate BOND POLARITY and MOLECULAR GEOMETRY to MOLECULAR POLARITY. A simple rule to heed for any molecule that we will see in this course (it works for ALMOST all molecules in general): In your Lewis structure of a molecule, IF there are one or more lone (NONBONDED) pairs of electrons on the central atom, the molecule will guaranteed be polar because there will definitely be a partially negatively charged region/side by the nonbonded/lone pair(s) of electrons.
On Thursday, we will have our second bonding exam. There will be many questions on naming salts, molecules, acids, bases, and hydrates. The test will cover polar and nonpolar covalent bonds, ionic bonds, metallic bonds, molecular geometry, and a little bit of molecular polarity (or lack thereof).
Study your notes and do ALL of the homework problems/worksheets that have been posted!
# posted by C @ 1:30 PM 
