Chemical names and formulas

I had an extream amount of fun learning about this. It was hard but fun. Like we could take H2O and we would break it down into what element were there.

H2O  2 hyrdrogen and 1 oxygen (water)
 WE would make it into games then. It was hard to learn. What we learned next was how to change the ending.  i can honestly say I have never struggled, like I did with this, before. It Hurt to even think about but I am glad we had the periodic table to help.

2- ide
3- tride
etc.

Add those on the end of a formula that looks like  HAu3 (I dont think that comes out to anything but I am trying to make my point). Those were the hardest to learn. We had many tests on this and this was hard.  Yet it was fun to learn.

Chemical Bonding and Molecular Structure

There are two forms of bonding.

• Ionic, where an electron completely transfers to a new element.
• Covalent, where the elelectrons where shared between elements, never transfered.

Ionic compounds

- essentially complete electron transfer from an element of low IE (metal) to an element of high electron affinity (EA) (nonmetal). This is usually between metals and non metals only.

Covalent: you share the valence electrons. basically the electrons that connect each other/ or closests to each other.

Number of valence electrons is equal to the Group number.

example:

ATOM core valence

• Na 1s

Molecular structure is basically the blueprint for the molecule. It can planned out in a dot structe which is my facorite.

                             0---b------0 sorta like this but it is much more detailed.2 2s2 2p6 3s1 [Ne] 3s1

Br [Ar] 3d

10 4s2 4p5 [Ar] 3d10 4s2 4p5

types of reactions lab

1. a + b= ab (synthesis) example: N2 + H2 = NH3 
2. AB= A + B (decomposition reaction)
3. A + BC= B+ AC (single replacement) example: Zn + AgNO3 Ag+Zn(NO3)2 /Bad prom/
4. AB + CD ---> CB + AD (double replacement)
5. fuel + O2 ex. C3H8+O2 ----> CO2 + H2O ex. C8H18+2 ---> CO2 + H2O (combustion)

I really wasn't here for the lab ( I blame my brother for all and any damages this may cause.)
Timmy did explain the lab to me. Unfortuantly since I was not there I cannot give first hand knowledge of the lab. What Timmy and Leigh explained to me (including you mister ludwig), was that you took different compounds or metals  and put them in solutions. Then you recorded the reactions. Which can be found at the top of this post. I had a ton of fun watching the types of reactions Mr. Ludwig described.

The bad prom effect was especially funny. I call it third wheel syndrome. Just a joke, but that is one element goes with another leaving the other alone. by itself. poor element. Single replacement.

1. A + BC= B+ AC (single replacement) example: Zn + AgNO3 Ag+Zn(NO3)2 /Bad prom/

These two are really confusing are the really similar ones.

1. a + b= ab (synthesis) example: N2 + H2 = NH3 
2. AB= A + B (decomposition reaction) 

Number one is creating something new. in this case using nitrogen and hydrogen and making its nitrogen hydroxide Number two however is dissembling something. reverting it back to two sperate elements then a elemental compound.

1. AB + CD ---> CB + AD (double replacement)
2. fuel + O2 ex. C3H8+O2 ----> CO2 + H2O ex. C8H18+2 ---> CO2 + H2O (combustion)

Number one in this group however is probably the funniest. Say you go to prom with your friends crush and your friend goes to prom with your crush. By the end of the night you switch crushes and you leave happy. the end. Well that is my discription of it.

Number two howver, is my favorite. you need fuel. plus oxygene and then you get this.

This is what I learned.

metal activity.....

Yesterday we did the metal activity. It was a group of four, which consisted of Leigh, Candance, Timmy, and I. We were wondering (well our task was) to see which metals would react with which solutions and what would happen. I got especially excited, thinking that someone was gonna blow. Sadly not the case.

Leigh and Timmy did most of the work. They after all understood the directions better then me. We had magnesium, copper, zinc to place in solutions of certain nitrates. We were to record the results and we did. Most of them did not react.