Standard 8 self-analysis 2nd quarter

Remembering what I did in chemistry:

1. Worksheets
2. Elements and Such
3. Conductivity Lab
4. Into to Ionic bonding and Ionic Compound Formulas
5. Magnesium Lab
6. Covalent Bonds
7. Types of Reaction

What is important about it:

Each blog I wrote was very interesting and fun. The class was just engaging to be in. I enjoyed learning about the elements, the magnesium lab and the types of reaction lab. The blogs and book work gave me more knowledge of Chemistry.

Applying:

The only reason I apply chemistry to life everyday is because I have it 1st hour. I guess I could use chemistry everyday somehow.

Evaluating:
This 2nd quarter has gone by fast but I think I did my best. My blogs were really interesting, in-depth, and detailed. Most has really good references and youtube videos that enhanced the blog and my showed my knowledge of the subject I'm talking about. So I would give myself an A for effort.

Creating:
Form the 1st quarter I think I reached my goal of putting more visual effects into my blog and using more technology in the class. I also have reached my goal if having deeper explanations of what we were studying. This next quarter I would like to get better and writing blogs and getting more 4's. For this next quarter my goal is to get all 4's. 

Types of Reactions

With this blog post we did 7 different reactions and named they formula that went with them. We did a slide show and added some videos of the coolest labs. Also the blog shows the type of reaction and an explanation of what happened in the lab.

Covalent Bonds

Recently we have been studying about Covalent Bonds and what happens when they do bond. Also we have talked about the Lewis Structure, molecular shapes also known as the  VESPAR model which is an acronym for Valence Shell Electron-Pair Repulsion. We have done many different worksheets and and bookwork. We have looked at equations to find out if they are ionic, covalent, or both. How you find out these types of is you look at the equation and see if its a metal+nonmetal and it would be ionic. If you have a nonmetal+nonmetal it would be covalent and the last way would be a compound containing a polyatomic ion. An example of an ionic compound is CaCl2 because it is a metal+ a nonmetal. H2O is covalent because it is a nonmetal + a nonmetal. Lastly Na2Co3 because it contains one polyatomic ion. Going back to the Lewis Structure, molecular shapes and VESPAR model. The Lewis Structure is a dot diagrams is the amount of valence electrons in an atom. This video is a really good explanation on how to write them.



After you understand the Lewis Dot structures you move into the VESPAR model or molecular shapes
the formula CH4 has a Lewis Structure is this image here----------------->

This video is a really good tutorial about the VESPAR model.






The molecular shape of CH4 if a tetrahedral because it has 4 total pairs and 4 shared pairs and 0 lone pairs. This video explains a little more about how the molecules combine and form these 3-D shapes.

Here is a worksheet I did about Lewis Structure and the Molecular shapes it has.

Here is the back page of the worksheet.

Magnesium Lab

Introduction/ Procedure:

Pre-Lab Questions

For this lab we had to conduct a Pre-Lab:   

Which is to the left.

Materials:
The materials we had during this lab is a crucible, a shiny pice of Mg, clay triangle ring and aBunsen burner
Procedure:
First off we put our triangle ring 7cm above the Bunsen burner and then placed the crucible inside the triangle. Then we measured out 25cm of Mg. After that we placed the crucible with the Mg over the flame and waited until we say a spark. Then we placed our Mg inside a beaker with 10ml of water.
Data:

This is our table with all of your measurements and information.


Analysis Questions.
1. With this lab light energy was conducted. This happened when the Mg was heated and sparked.
2. When Mg is reacting with are it changes colors to a blackish color. Anytime you have Mg out in the open it will react.
3. Magnesium oxide and Magnesium nitrate 
4. Magnesium and oxygen because our mixture consisted of a white   product. 
5. The Magnesium compound was conductive but it wasn't a high level of conductivity.

Intro to Ionic Bonding and Ionic Compound Formulas Writing

We have currently been studying about chemical formulas and have been learning how to equal them. With this worksheet to the left was the first time we tried playing with the chemicals inside foods we eat. We looked at cat food, granola bars, kidney beans and such. We found these chemicals on the label of the product. Surprisingly there were many chemicals in each product I looked at.

Here are the all the products I looked at and the name of the compound and the Ionic Compound that goes with it. As you can See the compound have numbers and subscripts that go along with an element. They look hard to do but they are actually really easy. Here is and example of a compound and the Ionic Compound that goes with it: Potassium Chloride: KCl it goes this way because Potassium has a positive charge of 1 and Chloride has a negative charge of 1 so the cancel out to KCl with no sub numbers but Tin Sulfide will have a subscript of 2 because Tin has a positive charge of 2 and Sulfide has a negative charge of 1 so you cross the 2 over and the -1 over and you get SnS2 but the two will be a subscript. 

This is another worksheet (left) as a reference to show how to do these.  Also I have some book work( below) to show how awesome I am at these Ionic Compound.

Conductivity Lab

With this lab we tested different conductivity of mixtures. We tested four mixtures and all of them had conductivity. 3 out of 4 mixtures had high conductivity. The other 1 had low conductivity. The slide show will show you procedures in the lab and explanations of what went on in this lab.

Elements and Such

We started off by learning about mole day. Mole day is a strange holiday where the holiday starts on 10/23 at 6:02 a.m. and ends some where around 6:02 p.m. The mole is 6.02 x 10^23 this is 1 mole. Amado Avogadro is a scientist of physics and math. He began studied in both but later he began to think of a hypothes that equal volumes of gasses contain the same number of molecules later that hypothesis became a law also known as Avogadro's Law. The mole day has a cute little furry animal called a Mole believe it or not so I created a little foil mole that looked more like a ball of foil than the mole, but the object of creating this mole out of foil is to use .5 mole of aluminum. I weighed the starting foil and was right on but after I created the mole it became heavier because of the crushing the made the volume heavier. Here is a funny mole joke which i take no credit for but i enjoy it still. What is chemical nonsense?.... MOLE-archy:). Here is a youtube video explaining all about the mole:) I really like this website it is kahn acadamy it is a good website to go to if you don't understand something in science and  or in math.

A few days after Mole day we started on a periodic table scavenger hunt and during this worksheet I noticed some trend in the periodic table. Also learned more of the placement of the elements like: 

Metalloids	Nonmetals
	Other nonmetals	Halogens	Noble gases
Metals
Alkali metals	Alkaline earth metals	Lanthanoids	Transition metals	Post-transition metals
		Actinoids

If you click Periodic Table it will take you to the website I used to do the scavenger hunt. And my paper is below.

After the scavenger hunt I learned that the periodic table has many trends and also that they have trends for a reason.  The periodic table has columns and rows of varying sizes. The reason behind the table's odd shape becomes clear if it is divided into sections, or  blocks,  representing the atom's energy sub level being filled with valence elections. Because there are four different energy sub levels (s, p, d, and f), the periodic table is divided into four distinct blocks. The s block consists of group 1A and 2A, the p block is 3A through 8A, the d- block consists of 3B through 8B and continues through 1B and 2B.  Here are some example problems on my paper that shows I know what the periodic table is about and what consists with in it.

  

Worksheets

With this blog we did book work about Quantum Mechanics. Quantum Mechanics states that only a certain amount of electrons can be in a shell. The number increases as you continue out from the nucleus. With the first shell it can only hold two electrons, the second shell has eight, the third shell has 18. The levels or shells are also called orbitals. These orbitals have sub-levels starting after the first orbital. Each level starts with the S orbital. The S orbital holds two electrons. When the S orbital is filled, you start to fill the sub-levels. The first sub-level is the P. Did you know you can name elements by their orbitals.  An example of electron configurations is Bromine (Br) Bromine has 35 electrons: [Ar]4s23d104p5.

This is my first set of questions:

This is my second set of questions:

Standard 8

Remebering: What I did in chemistry is
1. Properties of matter blog
2.  Separation Techniques Lab
3. Light and Atoms Review
4.Introduction to Electron Configurations in Atoms

What is important about it:
Each blog was interesting to write and learn whats new in the world of chemistry and just a new insight of the world of chemistry.

Applying:
 I could apply this in everyday life. Well I want to become a nurse so I think I could use this when I go to medical school.

Evaluating:
How I did this 1st quarter I think I did well I kept up with my blogs and kept a steady standard of proficent. So I would say that I did very well for my very first time being in Mr. Ludwigs class.

Creating:
Next quarter I could put some youtube videos, websites, and just more visual effects to my blogs to give a further explanition of what we are studing.

Light

Did you know that light is a type of electromagnetic radiation? Electromagnetic radiation is a kind of energy and acts like a wave as it travels through a space. (Examples of that incule X ryas, Radio waves, and Microwaves. ) Waves can be characterized by their wavelength, amplitude, frequency, and speed. The shortest distance between equivalent points on a continuous wave is called a wavelength. The height of a wave from the origin to a crest or from the origin to a trough is the aptitude.  Frequency is the number of waves that pass a given point in one second. The SI unit for frequency is Hertz which is the same to one wave per second.

With this diagram you can see what a wavelength, frequency, and what amplitude is and what the symbol is for wavelength.

 I looked through a spectroscope at 9 different lights.. The lights we looked at through the spectra scope are in order from the longest wave length color with the highest frequency (red), then the colors become shorter- orange, yellow, green, blue, indigo, and violet. Violet has the shortest wave length with the lowest friquency. Also with every light we observed it gave off a gas and the gas that I observed had a different spectra for each light. 

My lab with the spectrum and diffrent lights. With the lab is a scale the scale is what was inside the spectrascope the wavelength the higher the number the longer the wavelength and the higher the frequency.

LAB PAGE 1

LAB PAGE 2

Atomic Structure

Atomic Structure

We should first understand the models of elements we have Daltons atomic theory that explains the all matter is small and the particles are called atoms.

The second is J.J. Thomson's plum pudding model that proposed that negatively charged elections were distributed throughout a uniform positive charge.

The last is Ernest Rutherford. He expected most of the fast moving and relatively massive alpha particles to pass straight through gold foil. He also expected a few of the alpha particles to be slightly deflected by the electron in the gold atoms.

Remember back in elementary school when we were first learning about atoms and they told you about neutrons being neutral, protons being positive and electrons being negative. Yes that is true but now we go even more in depth of that. Now we learned about Isotopes and atomic mass. Crazy to think that such a little thing has a lot of depth to it.

         Everything that is needed to known about an atom is on the periodic table of elements. At the beginning of the table you have an element broken down  like this chlorine element.

You have protons and neutrons in the nucleus of an atom and the electrons are floating around the nucleus of the atom.

The final steps to understand an atom are as followed:

• You look at the atomic number and the the atomic number is the same number of protons and electrons.
• Mass number is the average of all isotopes of the element.
• To find neurons you subtract the Atomic number form the atomic mass

So understanding atomic structure isn't as hard as it sounds.

Separation of Mixtures Lab and Cromatography Lab

From all of our labs we have concluded that the labs were very fun! Also that separating the mixtures was difficult but my idea of sifting the iron chips into beakers until we have separated the iron form the sand. We were right in the mark when we did the final weight of the mixtures. Over all with sifting the mixtures I thought we did very well.

In the chromatography lab I learned that the colors with more mass travel to the edge of the paper faster. The colors with more mass were usually the darker colors. The colors with less mass would stay closer to the center of the paper. Doing this lab I have learned about mass moment and how to make pretty art without embarrassing my self by drawing.

Properties of Matter!!

Properties of Matter

 With my research I have found that Chemistry is the study of the properties and behavior of matter. Chemistry is the branch of science that studies composition, structure, and the changes that properties of matter undergo. Did you know that EVERYTHING has matter?? Can you take a guess what isn't matter?.... ENERGY. Energy is the only substance that isn't matter. What is matter you say? Well if you ask yourself these questions you can answer that question: Does it take up space? Does it have mass? If you say yes to these questions then it is matter. So lets ask is air matter? Well does it take up space?... Yes. Does it have mass?.... Yes. So yes air is matter!

 States of matter

Can there be more that 3 states of matter? Yes there are a few more one is plasmas, Bose-Einstein condensation in Dilure Gases, Fermionic Condensates.

Types of Matter: Pure Substance contain elements and compounds another is a Mixture contains homogeneous and heterogeneous.

Substance- is matter of a particular kind. Each substance has its own unique blend of properties that are different from the set of properties of any other substance.

 

ELEMENTS<-SUBSTANCE-> COMPOUND

ELEMENTS: The purest or simplest form of a substance is an element. There are 117 known elements and 94 elements that occur naturally.

COMPOUND:  A pure substance containing more that 1 different element are known as compounds. Elements in compounds are compounds are combined in a definite ratio.

 

MOLECULE- A substance of 2 or more atoms in a definite arrangements held together by a chemical bond.

DIATOMIC MOLECULE- Contains 2 or more atoms

POLYATOMIC MOLECULE- Contains more than 2 atoms

MIXTURE- Consists 2 or more different physically combined substances like a salad!! YUM

Two types of mixtures: Heterogeneous- different and Homogeneous- the same.

                 











A salad represents the physical properties: the ingeredients are each a physical item a tomato, onion, cucumbers etc.. Each mixing together to create something tasty and delicious. The plus side to this physical mixture is that it is a little easier to to sort out unlike a chemical mixture a chemical mixture has many properties to it and those can be very hard to sort out. A chemical could react with another chemical and form to a whole new chemical. Which with that happening it will take more time and thinking to decode the mixture. If I had to decode a mixture I would most defenitly choose a physical mixture.

• Solution is a special type of mixture it combines a solute and solvent.

 

• Properties of matter are physical and chemical properties.

• Science uses a select group of the metric system called the SI units.

My information resource.
http://www.watchknowlearn.org/Video.aspx?VideoID=5236