Derek+H

Wiki Assignment 10- Biomolecules
1. Made of a bond of carbon, hydrogen, and oxygen. 2. They are used for fuel found in breads, pastas, and cereals. They keep you concentrated and give energy, and when broken down can be stored in the body as fat. 3. Glucose and fructose found in breads and pastas.
 * Carbohydrates**

1. Made up of hydrogen and carbon atoms. 2. Builds muscle and is used for every activity in the human body. Atheletes need protein before workouts. 3. Hemoglobin and insulin are proteins in the body
 * Proteins**

1. Made up of non-polar covalent bonds between carbon and hydrogen. 2. Lipids act as energy storage because they are insoluble in water, which is what our body is mostly made up of. Lipids also control some hormones by regulating metabolism 3. Glycerol and cholesterol
 * Lipids**

1. A **nucleic acid** is a macromolecule composed of chains of monomeric nucleotides. In biochemistry these molecules carry genetic information or form structures within cells. 2. Found in RNA and DNA determines genes. 3. DNA and RNA
 * Nucleic acids**

Wiki Assignment 9: Concentrated vs. Dilute and Strong vs Weak.
A concentrated solution has alot of solute in it. A dilute concentration does not have much solute in it. A solute is something that dissolves in water, so the more things that are in the water, the more concentrated it is. Vice versa via dilute solution.

The strength and weakness of an acid reflects on how the acid breaks up and dissolves in a solution. A strong acid breaks up and dissolves right away. A weak solution does just the opposite, it takes a long time for it to break up.

Concentrated Strong Acid - HA + H2O <---> H3O(+) + A-, This is a strong acid in a concentrated solution

Concentrated Weak Acid - H2O + HCl ---> H3O(+) + Cl-, This is a weak acid in a concentrated solution.

Concentrated Strong Base - 2 H2O (l) → H3O+ (aq) + OH− (aq) this is a strong concentrated base Concentrated Weak Base - 2 H2O (l) → H3O+ (aq) + OH− (aq) this is a weak concentrated base

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Once a chemical reaction has reached equilibrium the concentration of reactants and products remain constant with time because the forward reaction occurs at the same time as the reverse reaction leaving it equal. It does not condradict as being dynamic because since there is no net change in the concentration, it is referred to as dynamic.======

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CaCl2(s) Ca2+(aq) + 2 Cl-(aq) K= [Ca2+] [Cl-]2 Cu(s) + 2Ag(aq) <-> Cu2+(aq) + 2Ag(s) K=[Cu2+] / [Ag+]2 AgBr (s) --> Ag+ (aq) + Br- (aq)  ====== Ksp=[Ag+][Br-]

Wiki Assignment 6: Reaction Rates
Concentration - Increasing the concentration increases the reaction rate of the solution, this occurs because as the concentration is higher there are more particles with more ability to collide with one another. Temperature - Increasing temperature increases the reaction rate because as the temperature increases the energy of the particles increase allowing them to move faster causing more collisions. Catalyst - By adding a catalyst, the solution then requires a lower activiation energy causing the reaction to occur faster causing more collisions. Surface Area - By increasing surface area, the chances of creating collisions is higher allowing a higher reaction rate.

[] =Wiki Assignment 5: Investigating Solubility and Immiscibility= To clean up an oil spill certain things must be done. First, it is contained by boats and floating rafts that skim across the water. Next, when the oil is on the surface area of the water, boats suck up or scoop up the oil. In other cases, large sponge like objects absorb the oil and water and another means of cleaning it up is by lighting the oil on fire, which doesnt happen often because of the toxic smoke produced. For some oil spills experts say to leave it alone if it doesnt affect the enviornment because the oil will evaporate. Chemicals are also used to control the spills, disperants are put into the water to break up the oil and cause it to disperse faster.

Solubility - is the property of a solid, liquid, or gaseous chemical substance meant dissolve to form a homogeneous solution How affected by temp: directly affected by the temp. stirring: directly affects the solution rate surface area: directly affected by surface area beacause the solution can dissolve faster

Rate of Dissolution - The rate at which something dissolves or disperses How affected by temp: directly affected by the temp stirring: the more solution stirred, the faster the rate of dissolution surface area: directly affected by surface area beacause the solution can dissolve faster

Wiki Assignment 2: Ideal Gases in the Real World

 * Boyle's Law** - In everyday life, pumping air into the tire of a bike demonstrates this law. The law state that volume decreases and pressure increases, pressure increases when volume decreases.




 * Charle's Law** - By watching a hot air balloon take off explains this law. A person heats up the air which makes the volume of the air expand which fills the balloon with air that is less dense than the outside air causing the balloon to float upward into the denser outside air. This is true because the law states that as temperature decreases/volume decreases. Temp. increases/volume increases.




 * Gay-Lussac's Law**: Pressure decreases / temp. decreases. Pressure increase / temp. increases. An airconditioning system explains this law well, it compresses a gas and then pushes the high pressure gas into a radiator where it expands and turns cold which cools the air flowing past the radiator exit and this cooled air is directed into the house.

WIKI - TED Assignment 1: TED Talk
http://www.ted.com/talks/rebecca_saxe_how_brains_make_moral_judgments.html

I chose this video because I am interested in the human brain and mind and how it works, this video caught my attention right away.

In this video the speaker, Rebecca Saxe, talks about how your brain makes moral judgements as well as adult decisions. Rebecca talks about how young kids have enough decision making skills to determine "which sandwich is his" but not why it is right or wrong (moral decision) until an older age based on an experiment which she conducted on kids ages 3-7. Also talked about was how our brains have a certain function that thinks about what other people are thinking (RTPJ). This RTPJ is a place in your brain, it is soley for trying to understand someone else or what they are thinking. Another interesting thing she showed in the video is how when a magentic force is issued on someones brain, this magnetic for called TMS, has the ability to change a person's moral decisions.

I think this is a very interesting video about how parts of the brain works as it developes through age. I also think that the ability to change how someone chooses right from wrong is shocking. It makes a person think "what is right and wrong really?" and the fact that it changes magnetically is very cool.