Test

We had a test the other day and I don't really know how I did on it! I'm hoping I did better than my quiz because I studied a lot.


 https://www.youtube.com/watch?v=XdVP9VsTOIU

Stoichiometry

Stoichiometry sounds like an intimidating topic, but the definition isn't as complicated as you might think. It is defined as, the process of using a chemical equation to calculate the relative masses of reactants and products involved in a reaction. The balanced equation for a chemical reaction describes the stoichiometry of the reaction. You always start off with what is given, and then you work your way to find what is needed. There are multiple ways to solve these problems, and I like using the magic number method. The video below will show you how to do it!

the magic number method

Quiz

We had a quiz the other day and I wasn't prepared for everything on it! I read over the chapter, but I think watching videos over the materials helps a lot more. Some of the questions I did the work and got the answer, but I would do something silly, like subtract my answers and pick the wrong one. Hopefully for the test I don't make silly mistakes, because at this point, every point counts.

crash course
the greatest song you will ever hear
mole ratio practice

Lab

We did a lab the other day to test the reactions between different chemicals. There were three liquids we mixed with solid to test if they had a chemical reaction or not. The solids were silver, copper, calcium magnesium, lead, and zinc. The liquids were water, copper (II) sulfate, and silver nitrate.  Calcium reacted with every liquid and was very active.

Chem Club

So after school, I went to go over my test and it happened to be the same day as chem club. They were making snow globes so I made one too! We dissolved benzoic acid in water, and then let it cool. It started to form unique looking "snow". I'm probably going to super glue something in the lid for a Christmas theme, so it's not an empty snow globe. It was pretty cool lab.

Test

We had our unit test today. I was running on one hour of sleep and a lot of caffeine. When I got to class, I felt pretty awake but I was jittery when I was taking the test. I was hearing a lot of people didn't get done on time so I tried not to spend too much time on problems I couldn't figure out. I did a lot of practice and was pretty confident I wouldn't fail, but now I'm not too sure! When we took notes on molecular and empirical formulas, I was a little confused. I watched some videos about how to solve some problems and it made a lot more sense. Overall, I feel like this sad piece of toast. 

How to find empirical formula

Hydrate

Anhydrous

chloride lab

In this experiment, we tried to find the compound of zinc chloride by measuring masses with the hydrochloric acid. It was cool to see the zinc dissolve and the chloride evaporate.

here's a selfie of me and frank that she doesn't know about