Showing posts with label Jefferson. Show all posts
Showing posts with label Jefferson. Show all posts
Monday, April 2, 2007
First day back from spring break
Today, our lovely chemistry teacher handed out our fire works assignments AND our tests. i hope you guys all passed with flying colors. anyways we went on reviewing the kinetics assignment that was given to us on friday of last last week. after than we were given a textbook assignment that's due on wednesday or thursday. oh and a wordsearch for fun. that is all the next scribe is ree-shard
Saturday, March 3, 2007
Scribe - feb 28
All we did on wednesday was that we went over the "oxidation and Reduction" hand out that Ms K gave us last week. We went over assigning oxidation numbers and then we had time to work on identifying the reducing agents and oxidizing agents.
here's an example:
FeBr2 + Br2 ----> FeBr3
Fe+2Br-12 + Br02 ----> Fe+3Br-1 3 ' identifying the oxidation numbers
Fe loses one electron therefore it is oxidized
Br gains one electron therefore being reduced
FeBr is the reducing agent
Br2 is the oxidizing agent
Tip:
if one has gained an electron then it's reduced
if one has lossed an electron then it is oxidized
an agent is found on the left side of the arrow ( ----> )
remember that our test tube mystery lab is due on monday
here's an example:
FeBr2 + Br2 ----> FeBr3
Fe+2Br-12 + Br02 ----> Fe+3Br-1 3 ' identifying the oxidation numbers
Fe loses one electron therefore it is oxidized
Br gains one electron therefore being reduced
FeBr is the reducing agent
Br2 is the oxidizing agent
Tip:
if one has gained an electron then it's reduced
if one has lossed an electron then it is oxidized
an agent is found on the left side of the arrow ( ----> )
remember that our test tube mystery lab is due on monday
Thursday, February 15, 2007
Solution Detective Lab
We started off by going over question 2 from yesterdays "prelab(?)".
the solutions to it was:
1) AgNO3
2) NaI
3) CoSO4
4) Bacl2
After that we did our our lab where we had to pretended to be detectives to figure out what the 4 mistery solution were. Each group( of 2) had their own set of 4 solutions where one had a color while the other three were colorless.
After that was completed and handed in, Mrs K handed us a lab which we will be doing during the 26-27. Instead of identifying 4 solutions, we have to identify 12 solutions. this is not a group lab so we have to do this individually. We have to do estensive research on the lab And write up how we're going to approuch this lab, ei how are we going to identify 12 solutions
For those of you who were absent, i've taken the liberty of uploading the lab assignment online. so you can download it from the link provided.
Test Tube Mystery
The next scribe is Ricky
the solutions to it was:
1) AgNO3
2) NaI
3) CoSO4
4) Bacl2
After that we did our our lab where we had to pretended to be detectives to figure out what the 4 mistery solution were. Each group( of 2) had their own set of 4 solutions where one had a color while the other three were colorless.
After that was completed and handed in, Mrs K handed us a lab which we will be doing during the 26-27. Instead of identifying 4 solutions, we have to identify 12 solutions. this is not a group lab so we have to do this individually. We have to do estensive research on the lab And write up how we're going to approuch this lab, ei how are we going to identify 12 solutions
For those of you who were absent, i've taken the liberty of uploading the lab assignment online. so you can download it from the link provided.
Test Tube Mystery
The next scribe is Ricky
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