Francis Bond Head

allows for the relation between the nature of chemical bonds and the properties of molecules.1 Many times, the frontier molecular orbitals, named HOMO and LUMO, are analyzed in order to predict these properties. In this lab, each double bond corresponds to a molecular orbital. The HOMO, or highest occupied molecular orbital is the most energetic (highest n-value) orbital that contains an electron. The n-value is equal to the number of double bonds present. The orbital that corresponds to the…

The article talks about poor cities in Brazil, Shantytown called “alto do Gruzeiro” (Crucifix Hill), and Bom Jesus de mata. There is a bell that rings each time an infant or a baby dies. Most of these kids die unnamed and during birth but the fortunate babies who do survive will mostly last two or three months. Alto do Gruzeior is one of the three counties in shantytown that has the poorest representation of the third world countries, shantytown has mostly farms, ranches, sugar plantations and…

All four articles focus weigh the benefits and criticisms of breast feeding in contrast to formula feeding infants. Unsurprisingly the results are very similar in each article and the authors all seem to have the same belief that with all the known advantages of breastfeeding, it should be the obvious choice. The study done in 2007 in the UK shown in, “Healthcare Professionals and Mother’s Perceptions of Factors that Influence Decisions to Breastfeed or Formula Feed: A Comparative Study”…

very important, because for most biological reactions to occur, the reactants must be dissolved in water. The hydrogen bond is a weak bond that often forms between the hydrogen atoms and neighbouring atoms. Hydrogen bonds are very common in living organisms, such as between the bases of DNA are formed by hydrogen bonds to help hold of the DNA chain structure together. Hydrogen bonds also give water molecules two additional characteristics, which are cohesion and surface tension. These two…

1.3. AMORPHOUS STATE The amorphous state of solids is composed of molecules that have a disordered arrangement, which do not constitute to the characteristic of the crystal grid and, therefore, have zero crystallinity. The distribution of molecules in the solid amorphous form is not entirely random as it is specific to a gaseous state because it has a certain degree of order between neighboring molecules. Due to the lack of regulation and the absence of a crystal grid, compared to the crystal…

9th of November, 1888, a deformed body was found in 13 Miller’s court by a guy who came to collect rent fees. That body turned out to be a woman by the name of Mary Jane Kelly. She was found naked on her bed with her back hitting the mattress, her head turned left with her eyes wide open. The legs were spread apart with her insides carved open. Her abdomen and thighs were removed. Kelly’s abdomen was found in the next bed after hers. The bed was bathed with Kelly’s blood, as well as, the floor…

Comparison of Organometallic Compounds of Transition Metals and Main Group Elements Organometallic Compounds: The compounds which contain at least one direct metal to carbon covalent bond are known as organometallic compounds many of these are thermodynamically unstable and are pyrophoric. The meta may belongs to main group, transition metal, f group metal or a metalloid i.e. selenium, boron, arsenic, silicon, antimony, germanium, and tellurium and the carbon moiety may be alkyl, alkene, alkyne,…

Kaden Cox Mrs. Wells 14 October, 2017 English Composition 101 Juiced: Jose Canseco Introductory Paragraph This book was written by Jose Canseco, a former MLB player who was caught using steroids. Canseco was onto a promising start to his baseball career when he was caught using PEDs. He won Rookie of the Year, MVP, and was a multiple time All Star before he was caught using the banned substance. Along with many other MLB players, his greatness on the field may be overshadowed by the fact that…

Steroids and Performing-Enhancing Drugs Performance-enhancing drugs are used in sports to give the player an advantage over the other players. There have been many professional athletes that have been caught using performance-enhancing drugs. Many players are caught when a drug test is administered. Professional sports leagues have introduced a random drug test so athletes that do drugs cannot prepare for the test. Performance-enhancing drugs are banned in sports and if a player is caught using…

All Elizabethan sports tended to include an element of gaming and gambling. Billiards is a forerunner to the Pool played today and in the Elizabethan era, they gambled while playing this game. Elizabethan sports during that era are very similar to the games that are played today. Although Elizabethan era sports can be a lot rougher and bloodier, they are almost the same as some modern day sports. Elizabethan sports had more of a brutal aspect in them while modern day sports have a skilled and…