Andrew+L

[|How To Live To 100+] Wiki Assignment 1 I choose this talk because I really like biology. Living to be 100 is a very rare thing even in these days. This talk was about living to the age of 100. They found the most concentrated amounts of people that lived to that long age and did a study on how they lived their lives. These places were all over the world. Some of these people that are 100+ can still chop wood and beat people half there age on arm wrestling tournaments. I was really surprised and shocked at the reasons found for living to be 100+. All of these old people are very active. The main reason though for longevity is having friends. I couldn't believe that friends can make you live longer. It was also very interesting that many of these people live in remote regions of the world.

Wiki Assignment 2 [|A Scuba Diver Breathing and the Bubbles Going To The Surface.] [|Aerosol Can Exploding.] [|Lungs Expand After Inhale and Decrease As You Exhale.]

A scuba diver is an example of Boyle's Law. The bubbles exhaled by a scuba diver grow as the approach the surface of the ocean. (The pressure exerted by the weight of the water decreases with depth, so the volume of the bubbles increases as they rise.)

Aerosol can exploding is an example of Amonton's Law. Doubling the temperature of a gas doubles its pressure, if the volume and the amount of gas aren't changed.

The lungs breathing is an example of Avogadros Law. Doubling the number of moles of gas doubles its volume, if temperature and pressure aren't changed.

Wiki Assignment 3

The electron cloud around the atoms has a certain frequency and when heat radiation hits the earth and bounces back and the radiant energy has the same frequency the molecule absorbs the energy. The earths surface reflects the right frequencies for our greenhouse gases. An opinion I have heard is that since there are more days below average temperature this year than many others global warming isn't happening. Another opinion i have heard and believe is that the because of the Sun's life cycle its getting hotter so naturally the earth would get hotter.

Wiki Assignment 4

1. When water freezes at 0 degrees Celsius it turns into ice. Once in ice water is actually less dense than in its liquid form which is very unusual. This is not like other compounds. 2. Waters boiling point is 100 degrees Celsius when it turns into steam. This a very high temperature and not like the other elements and compounds. Water has a very high heat retention. 3. Water is the only substance on earth that can be found in all three states of matter. This is unusual because no other element is like this. 4. Water is a universal solvent which means that other elements and substances can be absorbed into it. It is very unusual compared to other elements/compounds. 5. Water conducts heat easier than any substance besides mercury. This is unusual compared to other elements because most elements need a lot of energy to increase in temperature.

http://www.physicalgeography.net/fundamentals/8a.html

Wiki Assignment 5

Since oil floats on the surface of the water because it is less dense there are a couple things oil clean up crews can do to clean up the oil spills that can so badly damage our environment. If the clean up crews are able to get to the spill fast enough they will surround the oil spill with steel booms that have flotation devices on them. This further prevents the spread of the spill and makes clean up easier. There are a couple of ways that the clean up crews with clean up the oil. They can burn the oil off the surface if the spill is fresh. This is a very uncommon practice in many countries because of the massive air pollution that it produces. In rich countries, that can afford the equipment, they often use almost like vacuum like devices that are booms that go across the water and suck up the oil. The crews can also use a sponge like device that sucks up the oil. http://science.howstuffworks.com/cleaning-oil-spill.htm

Solubility: The quantity of a particular substance that can dissolve in a particular solvent (yielding a saturated solution) Rate of Dissolution: The rate at which a solvent dissolves into a solute. Temperature affects the rate of dissolution because the hotter something is the faster the molecules are moving in that substance thus making things dissolve faster. Stirring affects the rate the same way by agitating the water the molecules of the solvent are mixed with the solute faster than they would be by just molecular motion. Surface area affects the rate also because the more solvent molecules that are touching the solute molecules increases the speed by which the dissolution occurs.

Wiki Assignment 6

My example of the reaction rate is the corroding of iron into rust or iron oxide, To explain this i will use the collision theory stating that the concentration affects the reaction rate. Since oxygen is the key reason why iron forms into iron oxide, its concentration will determine the how fast or how slow the iron will turn in to iron oxide or rust. Temperature is also a big thing that affects the reaction rate. When the temperature is hot the oxygen molecules will move faster causing more reactions this making the iron corrode into iron oxide. Catalysts also affects the reaction rate by lowering the activation energy. Catalysts make this easier to happen so if there are catalysts in the iron or in the air the activation energy required to form iron oxide will be lower. The surface area affects the reaction rate by making surface bigger you are also making more particles of the iron exposed to the oxygen this making the iron turn into iron oxide at a much faster rate.

Wiki Assignment 7

Although science and religion never usually cross paths, I believe in this case they do. The absolute perfect equilibrium is the yin yang. The light and dark in life. The good and evil push against each other and there is no change in the balance. The only time there is a change is if people become obsessed with one or the other in life. A chemical equilibrium is is the state in which the chemical activities or concentrations of the reactants and products have no net change over time. The example of this is when both the good/light and the evil/dark are at complete balance with each other.

Wiki Assignment 8

1.Once a chemical equilibrium has been reached the the forward and reverse reactions are at the same rate. The reason the reaction is dynamic is because reactions are happening all the time they are just balanced out because of the reverse reactions. 2.We right equilibrium expressions by using K=[c}^c[d]^d/[a]^a[b]^b. For three equilibrium expressions and their constants go to []. 3.Homogeneous- [[image:http://www.chemguide.co.uk/physical/equilibria/padding.gif width="40" height="15"]][[image:http://www.chemguide.co.uk/physical/equilibria/so2so3eq.gif width="251" height="16"]] [[image:http://www.chemguide.co.uk/physical/equilibria/kccontact.gif width="161" height="61"]] Heterogeneous- [[image:http://www.chemguide.co.uk/physical/equilibria/padding.gif width="40" height="15"]][[image:http://www.chemguide.co.uk/physical/equilibria/h2oceq.gif width="264" height="16"]] [[image:http://www.chemguide.co.uk/physical/equilibria/kph2oc.gif width="147" height="60"]]

Wiki Assignment 9

> Concentrated: Has a large amount of solute in the solvent. > A strong acid is an acid which dissociates almost completely when dissolved in water to produce a high concentration of hydrogen ions. code
 * 1) Dilute: Has a small amount of solute in the solvent.
 * 1) In a strong acid, most of the molecules break up into solutions. In a weak acid, fewer molecules break up into ions.
 * 1) Email

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]]Wiki Assignment 10

Carbohydrate: Carbohydrates are made of Carbon, Hydrogen and Oxygen. Carbs are needed to ensure a steady supply of energy (glucose) to the cells of the body. Some examples of this are bread and potatoes. Proteins: Proteins are made with amino acids in a polymer joined by peptide bonds. They are made of Carbon, Nitrogen, Hydrogen, and Oxygen. Proteins are needed in the body for antibody production, structural needs (muscle), and other various tasks. Some examples would be a steak and beans. Lipids: Lipids are composed of fatty acids. These acids are composed of Carbon in chains of 4-28 molecules. Lipids are a very high energy fat source. They contain almost 2X as much energy as carbs but they are worse for your heart and circulatory system. Some examples of this are butter and vegetable oils. Nucleic Acids: Nucleic acids are made into long double helix chains which are held together by hydrogen bonding. Nucleic acids are the acids that form the DNA in your cells. This DNA is your genetic code. NA also produce proteins from RNA. Examples of NA are DNA and RNA.