Bonding Practice

Practicing what you need for the test is hard but needed. I like to go through all my notes and make sure I feel like I already know what it says. I also like to watch videos and read stuff online. So here is a few links that helped me.


https://www.youtube.com/watch?v=QXT4OVM4vXI
https://www.youtube.com/watch?v=7DjsD7Hcd9U
https://www.youtube.com/watch?v=CGA8sRwqIFg
https://www.youtube.com/watch?v=nxebQZUVvTg

Bonding Basics

The type of bonds we are learning about remind me of the type of stuff we learned about our freshmen year, so it is kinda fun picking it back up again. Its also pretty easy because of how its like riding a bike as the rules and processes come back to you.

Bonding Help

Bonding Lessons

I really stinks when you are absent for 90% percent of a unit and have to catch up in 3 days, but I am still alive today so its not impossible. Working on these questions felt a lot like memorizing vocab because of the way I had to remember different structures and types of bonds.

http://hyperphysics.phy-astr.gsu.edu/hbase/chemical/bond.html

Periodic Trends

Periodic Trends: Atomic size gets larger as you move down a group and smaller as you move left.

Trends in Ionization Energy: The energy needed to remove an election from a gaseous atom. Ionization energy increases as you move up ant to the right across the periodic table. Metals naturally give away electrons, so their ionization energy is low.

Trends in Electronic Affinity: The ease in which and electron may be added to an atom, forming an anion. Some atoms don't require energy for this to happen, and actually give off energy, which is why some electron affinities are negative. Electron affinity increases as you move up and to the right.

Trends in Electronegativity: Tendency of an atom to draw electrons toward itself when chemically combined with another element. There are no units for electronegativity. Electronegativity increases as you move up and to the right across a period.

Periodicity - Bozeman
Periodic Trends - Isaacs TECH

Spectroscopic Analysis of Co and Cu

In this lab some of my classmates were able to analyze solutions of both cobalt and copper to compare their absorbency and transparency. I heard it was super simple so I wasn't too sad about not being able to participate. Luckily we still got the data so in the end we were still able to participate quite a bit.

Electron Configuration

The Four different levels on the periodic table

-Principal Energy Levels: describe how far away from the nucleus an electron can be found. In other words the one with the most distant orbital electron.

-Sublevel: There are 4 sublevels s, p, d, f,

-Orbitals: The s sublevel contains only one orbital. (Spherical shape) p sublevel contains three orbitals. (Dumbbell shape) d sublevel contains five sublevel and f contains seven orbitals (Complex shape)

-Spin: every two electrons spin in opposite directions.


Hund's Law
Aufbau Principal
Periodic Table Khan Academy
Pauli Exclusion Principle

Wavelength and Speed

In class we learned that the electronic structure of an atom refers to the arrangement of electrons. We also learned that visible light is actually a form of radiant energy. Electro magnetic wave is characterized by its wave nature. All waves have a characteristic wavelength and amplitude. The frequency of a wave is the number of times. The speed of a wave is given by its wavelength times its frequency. The electromagnetic spectrum is a display of various types of electromagnetic radiation arranged in an order of increasing wavelength. This is just some of the stuff I learned about.

Flame Test Lab

This lab was meant to test and see what color each metal would burn, It was super fun of course because we got to use fire! However I fell quite a bit behind everyone else because I was not as prepared as I needed to be. I didn't have my data sheet made so I was not in a good position to start. I eventually got it figured out and everything turned out well so I figured I shouldn't stress about it. I hope everyone else enjoyed the lab as much as I did.

Fireworks

When we began learning about fireworks in chemistry I was fairly intrigued because it was something that I wouldn't mind knowing a little more about. It was surprising to find out how there were 2 stages in which fireworks explode. Their first stage is the launch in which the explosion creates enough air pressure to launch the bulb very high in the air. Once this bulb is high enough it then has a second charge that explodes igniting the colors and dispersing the stars. We learned that different color stars are achieved by adding different metals that are burned. Also depending on the mixtures different hues and flares can be achieved.

Acid Mystery Lab

This lab was very similar to  the previous lab we did with tritations. We did the exact same process the only difference was that we had to use different math in a different way to answer what this mystery acid was. The lab was a breeze, and I had no problem quickly repeating the procedure. However, the math is where I got stuck at. I just had trouble figuring out how to work back from the measurements I took. I ended up getting help from a fellow classmate with the problems I was having.

Acid Base Blog
Acid Base Lab on Prezi
Help with lab on youtube

Tritation Lab

The purpose of this lab was to practice our ability to do a tritation reaction. The tritation we were measuring was between KHP and NaOH. We were able to see how much NaOH it took to complete the reaction by adding a couple drops of phenolphthalein that cause a steady color change in the beaker when the reaction is complete. It was sometimes hard because it would look like it was done but it wasn't actually all the way there. You usually had to give it a couple seconds or even 10 or so. In the end this lab was very helpful and taught me a lot.