The LAST TEST!

Today, the majority of my class took the last unit test of the semester, I was instead making up a test that I had missed 2 weeks previously. Instead I'm going to be taking the test on Thursday. The test is over stoichiometry which sounds a lot harder than it is! Most of it is just math, which I guess could prove challenging for our less math savvy classmates. The only thing I'm worried about is something that we learned in the previous unit, and that is balancing equations. I've always had a problem with it, even when we did it in physical science two years ago. It really doesn't seem that hard to me, but I always seem to mess up somehow, and it is quite frustrating at times! Anyways, my plan of attack for studying, is to brief over what we've learned this unit, because I feel very comfortable with my knowledge on the subject, and instead spend my time practicing balancing equations.

Just practicing these types of problems over and over again is my key to success, I hope.

Here are some websitse that explains balancing equations, and is really helping me study for the test. nyu.edu, Chemteam.info, Wikihow.com, Dummies.com, Sky-web.net

Final Review

Despite the semester being so close to over, I am still studying for this class. I guess this class will require us to study all the way up until the end. I feel good about what we've learned, as a class, this semester. I think that I will be able to do well on this test as long as I can recall what happened first quarter. I feel like this semester has lasted so long, and that we have done so much, it's almost overwhelming. I've completed nearly 3/4ths of the review packet, and I've done well so far, so I'm hoping this final goes better than in past experiences!

Iron Chloride Lab

On day 1 of the of the lab we did very simply steps. We simply had to get the mass of our equipment and mix together 50mL of water with approximately 7.50g of Copper(2) Chloride in a baby jar. We placed our nail in this mixture overnight and we waited. Today we basically just weighed, and recorded data. Here is what the mixture looked like:

This was before

This was after

Stoichiometry quiz

On Thursday I took a make-up quiz that was originally supposed to be taken on Monday. It wasn't too hard, but there weren't very many questions, so if you got 2 questions wrong it was a B. Overall I thought the quiz was pretty much what I expected, but there was one question that stumped me, and that involved density. I was very confused, and ended up completely guessing on the question, but I think I understand it now, after looking up a video on how to do it. I  have the link down below.

Click Here

But besides that density question I think I did pretty well, hopefully I'll be able to answer a question similar to that one if it comes up on the unit test.

Reactions Quiz

Today I took a make up quiz that I never took because I was sick all last week, so now that I've finally taken it, I can post about it. It only had double-replacement reactions on it, which I understand pretty well. some of the questions were slightly off the topic of what I had studied, but for the most part it would only have an occasional question that would throw me off, and the rest was fairly straight-forward and simple. I feel that I did well on it, but I know I missed at least a few, so I've linked some websites that might help anyone who is struggling with them, come time to study for the final.

Here and Here.

Reaction Lab

We did a lab regarding the solubility rules a long time ago, but I was sick and unable to make the post when originally done, but better late than never. The lab was regarding double replacement reactions. We used various aqueous compounds to form mixtures that would then either form a precipitate or would not. Then we recorded the data down on a data table. Often times it was hard to see if there was a precipitate, so you would have to use solubility rules to predict the outcome of the reaction. Overall the lab was a load of fun, and I hope to do more like it.