2013 “Reaction Classes and Pericyclic Reactions” ● 4 Lectures ● Recommended Texts: (i) J. March “Advanced Organic Chemistry”‚ p 839‚ `---Edn.‚ Oxford (W); Warren (2) Ch 34‚ 35. Syllabus 1) General principles (a) Reaction classes (i) Heterolytic (ii) Homolytic (iii) Pericyclic (b) Pericyclic Reaction Types 2) Electrocyclic Reactions (a) Definition and examples (b) Stereochemical aspects and the Woodward and Hoffmann rules 3) Cycloaddition Reactions (a) Definition
Premium Organic reaction Chemical reaction
slept with multiple different women and would never fully allow his self to fall in love with someone. Art was actually associated with a woman who would later become Ben’s wife. Another love that is portrayed within the story‚ of Thirty-Four Seasons of Winter‚ is the love of nature. The two step brother’s spend most of their time working out in the field doing manual labor and feeding the animals out on the farm. When the men are outdoors they seem much calmer and more at ease. It seems that
Free Love Family Marriage
Salem Witch Trials The Salem witch trials took place in colonial Massachusetts between February 1692 and May 1693. During that time more than 200 people were accused of practicing witchcraft‚ also known as the Devil’s magic.1 By the end of the trial nineteen were executed by hanging and one was pressed to death with stones. Seventeen others died in prison while awaiting trial.2 Although the trials were named after Salem Village‚ one of the towns involved‚ trials were also conducted in other towns
Premium Salem witch trials
To what extent can the high concentration of witch trials in the German states be explained by political and religious tension? The late sixteenth and seventeenth centuries were a time of dramatic change in Germany‚ both religiously and politically. Religiously‚ the Protestant Reformation‚ driven by Luther’s ninety-five theses‚ challenged Catholicism. Politically‚ the Holy Roman Empire grew weaker whilst territorial states such as Ellwagen gained power. The changes within these political and religious
Premium Witchcraft Salem witch trials Witch-hunt
as diagram shows. The measuring cylinder must be filled with water and then inverted into the tub. 2.Measure the quantity of hydrochloric acid and marble chips to the decided amount. Add water to the acid to change the concentration to what you need. 3.Take note of the amount of water in the measuring cylinder. 4.Put the marble chips and hydrochloric acid into the conical flask. Replace the bung and start the stopwatch. 5.Once the decided amount of time has passed‚ take note of the remaining
Premium Chemical reaction Carbon dioxide Concentration
Carbonates react with strong acids to give off carbon dioxide and water. Marble is calcium carbonate and thus behaves in the same way: CaCO3 (s) + 2HCL (aq)  CaCL2 (aq) + H2O (l) +CO2 (g) In this experiment‚ I am going to see if temperature affects the reaction rate between marble chips and hydrochloric acid by timing the release of carbon dioxide in the reaction. I predict the higher the temperature‚ the faster the reaction rate. This is due to the kinetic theory. The more heat
Premium Calcium carbonate Carbon dioxide Chemical reaction
where the village of Salem was torn apart by the accusations of witchcraft. Many innocent women and men were accused‚ tried‚ and executed during the Salem Witch Trials based on the false beliefs surrounding such tests as the touch test‚ pressing‚ devil’s marks and other absurd methods of examination. The year 1692 marked the beginning of the witch hysteria in Salem‚ when a small group of girls began to showcase odd behavior. “The girls screamed‚ threw things about the room‚ uttered strange sounds
Premium Salem witch trials Salem Witchcraft
Witch Hunt Research Sophia.Colon 10/21/14 4th “It is one thing to believe in witches and quite another to believe in witch smellers‚K.G Chesterton” In the early 1600’s some people started believing the witch hunt trials‚ that the devil was really inside their souls controlling them maybe even for the simple reasons of suspicion as well. In two articles “Modern Day Witch Hunt” and “The Salem Witch Trials” we see how society is impacted by so called witch hunts. The Salem Witch Trials occurred
Premium Salem witch trials Witchcraft Witch-hunt
Salem Witch Trials is one of the most controversial periods in the U.S. history. The event occurred in the colonial Massachusetts between February 1692 and May 1693. Nearly 200 people who lived in Salam village were accused of practicing witchcraft or the magic of devil‚ nineteen persons were hanged and one person was pressed to death by heavy stones. Finally‚ the colony confessed mistaken and guilty. More importantly‚ they passed a bill restoring the rights and good names for those who were accused
Premium Salem witch trials Witchcraft
Symposium Essay Witch Hunts As you have heard‚ witch legends credited the accused of some pretty extravagant and crazy things. Witchcraft and Sorcery were serious crimes and as such‚ had both serious trial procedures and very grave consequences. The people persecuting them‚ Inquisitors and lead hunters were well respected and thought be to doing good work. All of Europe had Witch trials and witch hunts. (And very famously‚ so did Salem Massachusetts.) I am going to talk to you a little bit about
Premium Witchcraft Salem witch trials Witch-hunt