Test Prep

While I may not even be there for the test- I'm still studying during the short period of time I have enough energy to. So here's some resources to review all of stoichiometry:

Limiting Reagents and Percent Yield
Explanation + examples
Walk through Video

Also do the worksheets on schoology!

Percent Yield

Last thing we learned in this Unit was percent yield:

Actual Yield / Theoretical Yield x 100 = % Yield

Doing this as another step to Stoichiometry can be a bit confusing. Here's some resources to help:

Percent and Theoretical 
Info + walk through of Problem
Limiting Reagent and percent yield

Lab. So Far

I haven't been here for most of the lab but so far what I've seen is that we're making solid copper in a baby food jar using a nail. Single Replacement reaction: Copper II Chloride + Iron = Iron II Chloride +Copper. On the day I was there we-

Washed off the remainder of the nail
Siphoned off the solution of Iron II Chloride
Washed copper with HCl and distilled water
Put copper in 'drying oven'

Nail in baby food jar

Washing the Copper

Copper 

Quiz

Oh boy. I feel like that was way harder than it should have been. I've had an easy time learning this yet I didn't do very well on the test. I don't mind making connections between what I've learned and harder questions but to do it on a test with limited time worth a huge amount of points is very nerve wracking. Trying to find a way around this confusion still.

Some study links for people who didn't take it yesterday for some reason:
Stoichiometry 1
2- Video
LOTS of links and resources

Example of how to set up the problems - Source

End of unit

Chemical Reactions- Source

Well I feel like I didn't have that hard of a time understanding this unit, but I'm still struggling with the tests. I'm really not sure how to improve on tests because I know I understand it and I study a lot so I'm not sure. Anyway, not a horrible section. Less math the better.

Writing Equations

Molecular equation is the complete reaction formula

Ionic equation is the broken down formula (Only things that are ionic get broken down- ex:solids do not get broken down)

Net Ionic equation is the driving force. (Ionic minus the 'spectator ions'- ions not used to produce the driving force.)

Links: Net ionic Info

More thoughts on reactions

Still working to understand a bit more about the reactions:

The types of reactions are:

Redox

Double-replacement 

Acid-Base.

There are different types of Redox Reactions:

Synthesis A+B = AB

Single replacement  AB+C+AC+B

Decomposition AB=A+B
Combustion A+B+02= AB

Redox reaction's driving force is the transfer of elections.

Double replacement's driving force is the solid produced.

Acid-Base's driving force is the production of water. 

Resources: 

Different types- Video  / Web

Source

Redox Lab

Passed the prelab quiz! This lab was really cool. Basically we were testing oxidation rules in redox reactions by combining elemental solids and aqueous compounds and then writing down whether a chemical reaction occurred or not. These reactions took a little while but overall they were super cool to see! Afterwards we created a reactivity series based on our data. We also wrote all the net ionic equations for our reactions which helped me understand redox reactions much more through repetition.
Oxidation rules
Oxidation numbers
Agents

Our reactions as they were reacting!

Our reactions once they were finished reacting

Test Prep

Overall, I feel pretty okay for this test. Not that that means much. I think the thing I have trouble with is telling the difference in the types of reactions. There was so much information in this one section that it's blurring together. Hopefully I can pull it together. Some helpful resources:

Video on Redox: Linda Hanson
Balancing: ErhsChem
Acid-base Reactions: Crash Course
Double-replacement reactions: GetChemistryHelp