Chemistry 101 - Introduction and Index of Topics

Welcome to the world of Chemistry 101! Chemistry is the study of matter. Like physicists, chemists study the fundamental properties of matter and they also explore the interactions between matter and energy. Chemistry is a science, but it is also used in human communication and interaction, cooking, medicine, engineering, and a host of other disciplines. Although people use chemistry every day with no apparent problem, if the time comes to take a course in chemistry in high school or college, many students are filled with dread. Dont be! Chemistry is manageable and even fun. Ive compiled some study tips and resources to make your encounter with chemistry easier. Not sure where to start? Try Chemistry Basics. Periodic Table of the Elements You need a trusty periodic table for practically all aspects of chemistry! There are links to characteristics of elements groups, too. Periodic TablePrintable Periodic TablesGroups of Elements Periodic Table Helpful Resources Use these resources to look up unfamiliar terms, identify chemical structures, and recognize the elements. Worked Chemistry ProblemsChemistry GlossaryChemical Structures ArchiveInorganic ChemicalsElement PhotographsFamous ChemistsScience Lab Safety Signs Introduction to Chemistry 101 Learn about what chemistry is and how the science of chemistry is studied. What Is Chemistry?What Is a Chemical?What Is the Scientific Method? Math Basics Math is used in all the sciences, including chemistry. To learn chemistry, you need to understand algebra, geometry, and some trig, as well as be able to work in scientific notation and perform unit conversions. Accuracy Precision ReviewSignificant FiguresScientific NotationPhysical ConstantsMetric Base UnitsTable of Derived Metric UnitsMetric Unit PrefixesUnit CancellingTemperature ConversionsExperimental Error Calculations Atoms and Molecules Atoms are the basic building blocks of matter. Atoms join together to form compounds and molecules. Learn about the parts of the atom and how atoms form bonds with other atoms. Basic Model of the AtomBohr ModelAtomic Mass Atomic Mass NumberTypes of Chemical BondsIonic vs Covalent BondsRules for Assigning Oxidation NumbersLewis Structures and Electron Dot ModelsIntroduction to Molecular GeometryWhat Is a Mole?More About Molecules MolesLaw of Multiple Proportions Stoichiometry Stoichiometry describes the proportions between atoms in molecules and reactants/products in chemical reactions. Learn about how matter reacts in predictable ways so that you can balance chemical equations. Types of Chemical ReactionsHow to Balance EquationsHow to Balance Redox ReactionsGram to Mole ConversionsLimiting Reactant Theoretical YieldMole Relations in Balanced EquationsMass Relations in Balanced Equations States of Matter The states of matter are defined by the structure of matter as well as whether it has a fixed shape and volume. Learn about the different states and how matter transforms itself from one state to another. States of MatterPhase Diagrams Chemical Reactions Once you have learned about atoms and molecules, youre ready to examine the type of chemical reactions that can occur. Reactions in WaterTypes of Inorganic Chemical Reactions Periodic Trends The properties of the elements exhibit trends based on the structure of their electrons. The trends or periodicity can be used to make predictions about the nature of the elements. Periodic Properties TrendsElement Groups Solutions Its important to understand how substance dissolve and how mixtures behave. Solutions, Suspensions, Colloids, DispersionsCalculating Concentration Gases Gases exhibit special properties based on having no fixed size or shape. Introduction to Ideal GasesIdeal Gas LawBoyles LawCharles LawDaltons Law of Partial Pressures Acids Bases Acids and bases are concerned with the actions of hydrogen ions or protons in aqueous solutions. Acid Base DefinitionsCommon Acids BasesStrength of Acids BasesCalculating pHpH ScaleNegative pHBuffersSalt FormationHenderson-Hasselbalch EquationTitration BasicsTitration Curves Thermochemistry Physical Chemistry Learn about the relationships between matter and energy. Laws of ThermochemistryStandard State ConditionsCalorimetry, Heat Flow and EnthalphyBond Energy Enthalpy ChangeEndothermic Exothermic ReactionsWhat Is Absolute Zero? Kinetics Matter is always in motion! Learn about the motion of atoms and molecules, or kinetics. Factors that Affect Reaction RateChemical Reaction Order Atomic Electronic Structure Much of the chemistry that you learn is associated with electronic structure, since electrons can move around much more easily than protons or neutrons. Valences of the ElementsAufbau Principle Electronic StructureElectron Configuration of the ElementsAufbau Principle Electronic StructureNernst EquationQuantum Numbers Electron OrbitalsHow Magnets Work Nuclear Chemistry Nuclear chemistry is concerned with the behavior of protons and neutrons in the atomic nucleus. Radiation RadioactivityIsotopes Nuclear SymbolsRate of Radioactive DecayAtomic Mass Atomic AbundanceCarbon-14 Dating Chemistry Practice Problems No matter how well you understand the text or the lecture, sometimes you need to see examples of how to approach and solve chemistry problems. Index of Worked Chemistry ProblemsPrintable Chemistry Worksheets Chemistry Quizzes Test your understanding of key chemistry concepts. How to Take a TestAtomic Structure QuizAcids Bases QuizChemical Bonds QuizElement Number QuizElement Picture QuizUnits of Measurement Quiz Science Fair Projects Doing a science fair project? Learn how to use the scientific method to design an experiment and test a hypothesis. Science Fair Project Help Other Useful Stuff Acids and BasesBefore You Buy a Chemistry TextbookCareers in ChemistryHigh School Courses Needed for College ChemLaboratory Safety RulesLesson PlansMaterial Safety Data SheetsStudy TipsTop Chemistry DemonstrationsTop Ways to Fail a Chemistry ClassWhat is the IUPAC?Why Get a Doctoral Degree?Why Students Fail Chemistry

Zora Neale Hurston Neglected and Remembered Author

Zora Neale Hurston is known as an anthropologist, folklorist, and writer.   She is known for such books as Their Eyes Were Watching God. Zora Neale Hurston was born in Notasulga, Alabama, probably in 1891. She usually gave 1901 as her birth year, but also gave 1898 and 1903.   Census records suggest 1891 is the more accurate date. Childhood in Florida Zora Neale Hurston moved with her family to Eatonville, Florida, while she was very young. She grew up in Eatonville, in the first incorporated all-black town in the United States. Her mother was Lucy Ann Potts Hurston, who had taught school before marrying, and after marriage, had eight children with her husband, the Reverend John Hurston, a Baptist minister, who also served three times as mayor of Eatonville. Lucy Hurston died when Zora was about thirteen (again, her varied birth dates make this somewhat uncertain). Her father remarried, and the siblings were separated, moving in with different relatives. Education Hurston went to Baltimore, Maryland, to attend Morgan Academy (now a university). After graduation she attended Howard University while working as a manicurist, and she also began to write, publishing a story in the magazine of the schools literary society. In 1925 she went to New York City, drawn by the circle of creative black artists (now known as the Harlem Renaissance), and she began writing fiction. Annie Nathan Meyer, founder of Barnard College, found a scholarship for Zora Neale Hurston. Hurston began her study of anthropology at Barnard under Franz Boaz, studying also with Ruth Benedict and Gladys Reichard. With the help of Boaz and Elsie Clews Parsons, Hurston was able to win a six-month grant she used to collect African American folklore. Work While studying at Barnard College, Hurston also worked as a secretary (an amanuensis) for Fannie Hurst, a novelist. (Hurst, a Jewish woman, later—in 1933—wrote Imitation of Life, about a black woman passing as white. Claudette Colbert starred in the 1934 film version of the story. Passing was a theme of many of the Harlem Renaissance women writers.) After college, when Hurston began working as an ethnologist, she combined fiction and her knowledge of culture. Mrs. Rufus Osgood Mason financially supported Hurstons ethnology work on the condition that Hurston not publish anything. It was only after Hurston cut herself off from Mrs. Masons financial patronage that she began publishing her poetry and fiction. Writing Zora Neale Hurstons best-known work was published in 1937: Their Eyes Were Watching God, a novel which was controversial because it didnt fit easily into stereotypes of black stories. She was criticized within the black community for taking funds from whites to support her writing; she wrote about themes too black to appeal to many whites. Hurstons popularity waned. Her last book was published in 1948. She worked for a time on the faculty of North Carolina College for Negroes in Durham, she wrote for Warner Brothers motion pictures, and for some time worked on staff at the Library of Congress. In 1948, she was accused of molesting a 10 year old boy.   She was arrested and charged, but not convicted, as the evidence did not support the charge. In 1954, Hurston was critical of the Supreme Courts order to desegregate schools in Brown v. Board of Education. She predicted that the loss of a separate school system would mean many black teachers would lose their jobs, and children would lose the support of black teachers. Later Life Eventually, Hurston went back to Florida. On January 28,1960, after several strokes, she died at the St. Lucie County Welfare Home, her work nearly forgotten and thus lost to most readers.  Ã‚  She never married and had no children.   She was buried in Fort Pierce, Florida, in an unmarked grave. Legacy In the 1970s, during the second wave of feminism, Alice Walker helped revive interest in Zora Neale Hurstons writings, bringing them back to public attention. Today Hurstons novels and poetry are studied in literature classes and in womens studies and black studies courses. They have become again popular with the general reading public. More About Hurston: Howard, Lillie P. Alice Walker and Zora Neale Hurston: The Common Bond, Contributions in Afro-American and African Series #163 (1993)Hurston, Zora Neale. Pamela Bordelon, editor. Go Gator and Muddy the Water: Writings by Zora Neale Hurston from the Federal Writers Project (1999)Hurston, Zora Neale. Alice Walker, editor. I Love Myself When I Am Laughing...and Then Again When I Am Looking Mean and Impressive: A Zora Neale Hurston Reader (1979)Hurston, Zora Neale. Their Eyes Were Watching God. (2000 edition)

Thoughts of Francis Bacon About Love Free Essays

Of Love The ‘Essays’ of Francis Bacon are the first in date of classics of English prose, in proper sense of the term. They are used as class-books almost as much of Shakespeare’s plays. No one in English literature has ever written a greater number of essays packed with striking formulas and loaded with practical wisdom. We will write a custom essay sample on Thoughts of Francis Bacon About Love or any similar topic only for you Order Now Bacon’s Essays’ are the fruit of his close observation of human life. They have been described to be the treasure house of wisdom. ‘Of Love’ is one of most famous essays of Francis Bacon. He discloses his philosophical thoughts on love. This essay is bound to have a wide appeal because of the subject it deals with. But it is a matter of great sorrow that bacon’s treatment towards love is really disappointing. In the beginning of the essay Bacon clears his position and thought against love and its greater role. According to Bacon, Love plays a greater role in the theatre than in actual life of man. Through this kind of thought he wants to tell that love is a matter of enjoyment that can be best suited only in plays or dramas. Not only that, he says in actual or practical life of a man love can not contribute much. According to Bacon, Love has always provided or rendered material for comic plays and sometime, for tragic plays. But in real life, love causes much mischief. Here Bacon clearly says that it is love which may wreck the career of a man. For example he mentioned the name of Antony and Othello who both were greatly troubled with the consequences of love. In this essay Bacon mainly deals with the disadvantages of love. Here Bacon speaks like a puritan moralist. He observes that no worthy person of ancient or modern time has been transformed to the mad of 3rddegree of love. Bacon opines that we are created to ponder over noble and great objects of human life. He does not support of kneeling a man before a woman for the sake of love and for some sorts of sensuous pleasure. It is really strange to observe that the passion of love twist or distort a man’s judgment. It is love that bounds a man to be a flatterer and at the same time a lover becomes absurd in his use of extravagant words about his beloved. Therefore he has rightly said that one cannot love and be wise at the same time. A lover does not like to lose his love in exchange of anything I getting Helen, Paris had to sacrifice both riches and wisdom though he finally lost Helen. Loving others is a Universal character in a man. If a man does not concentrate his love upon one or a few individuals, naturally his love will extend too many people. Thus he may become a kind hearted and Charitable if he grasps the opportunity of loving a large number of people In the last part of the essay, Bacon says that married love is beneficial to mankind but immoral love is really dangerous. It is, indeed, very difficult to agree with Bacon in his remarks on the subjects of love. Here we don’t have impartial treatment of love. Bacon regards love as Child of folly. It may be wise policy to exercise love with in limkits and not to allow interrupt with business. It is very realistic and natural that a lover has to sacrifice for the sake of his beloved. But the fact is that love is something grand and sublime. It is one of the most inspring and ennobling passing of mankind. It often is able to bring out the best that is in man. Tennyson has rightly said that it is better to have loved and lost than never to have loved at all. A man who has never loved has missed the opportunity of the greatest experience of life. The/ecstasy of love the golden dreams which ot gaves rise to, its thrills and excitement, are may be unknown to Bacon. Half the literature of the world deals with the joy and glory of love. Bacon would perhaps regard this literasy works as trash. It is indeed. Bacon sounds almost ridiculous while speaking of love. Francis Bacon is a Renaissance product and his essays reflect the Renaissance spirit. He may be called an eloquent prophet of new age of human thought and human activity initiated by the Renassance. In spite of being a special kind of moralist, Bacon criticised ove in his essay â€Å"OF Love† When he takes his position against love, we the common people feel sorry for Bacon as he may not be justified with what he said against love. He has mentioned the fake of Aotonio and paris in this essay. According to him they both have lost their valuable position. But at the same time both of them have gained a eternal place in Human mind for their sacrifice for love. We still remember and shed tears for Paris and Antorio but not for Bacon Who has outspoken against love which is an inborn god gifted quality of a human being. How to cite Thoughts of Francis Bacon About Love, Essay examples

Are You Ready For Some Football Essay Example For Students

Are You Ready For Some Football Essay Are You Ready For Some Football? From the early ages in history to the present day, sports have always been an important part of society. It teaches discipline, how to be a team player, how to interact with others and is a good source of physical activity. In specific, football utilizes all of these aspects of sports and its a great source of teaching self-restraint and perseverance. Some may say that football is a violent sport or its not beneficial in any way, but in reality it gives a person the basic tools needed not only for playing the game, but also how you interact with people in society. The first process of playing football is getting involved. It is actually very easy to get involved because there are various football programs offered to children as well as teens. To get involved in football you must have the will and dedication because of the amount of time football consumes through practice, meetings and games. People who become initially involved in football usually start early in life usually around nine or ten in peewee football and lasts until theyre thirteen. Even at this early stage of peewee, football is very demanding because of the time involved. This involvement is usually by choice of the child because of interest in football and parents usually dont force their children into playing. Involvement in peewee football is due to the fact that children have a lot more time to play than young adults. Football is also economically feasible for most families because it is relatively inexpensive so football is not restricted in who can play by the amount of mon ey their parents make. The team provides the equipment, with the exception of spikes and a jersey. The total cost of playing football is usually around $60.00 . Usually at the peewee level, you have 1-2 practices a week and a game every week. Also in peewee you have team meetings to discuss defensive and offensive strategy and sometime just to bond with your teammates. Usually this takes place once a week. Continuing involvement in football happens at the high school level because it is the most easily accessible program to teens. A teen will usually continue playing football in high school if they enjoyed playing or they really excelled at it in the peewee level. The good thing about playing high school football is that you dont have to be the best player just dedicated. High school football is more time consuming because you practice 4-5 times a week and have a game once a week, where in peewee you had only one to two practices during a football season. In addition to having more practices you also have more team meetings. In high school football usually you meet every weekday at lunch hour to watch video tape and go over offensive and defensive responsibilities. You also find yourself under the microscope because their may be two to three other guys competing for the same job so you are constantly trying to improve your own abilities and techniques. If you excel at high school footb all you may continue your football career at the college level usually through recruitment. This quote shows that colleges recruit high school players. That was when I started to realize that I was a pretty good athlete and that I was valuable to some people#8230; I got a lot of media attention but I mean that only tells you so much, I mean when you start to find out that you are a good athlete is when the colleges start to recruit you; (Dietz, Prus, Shaffir pg. 114). Colleges dont necessarily recruit you because you get a lot of attention, its what you do on the field. At this level, football is very demanding and doesnt allow much time for other social activities during the football season. During football season in college you have eight to ten practices a week. Most days you have practice in the morning and one in the late afternoon. At the college level, only the best survive. Finally, if you are extremely good you may be drafted to play for a professional team. Here, football becomes more than just a game and physical activity, it becomes a career. Instead of being just a fall sport, football becomes a year round struggle to keep your job and preparing for the next season. Usually dis-involvement comes after high school, around nineteen years old, because of the demanding nature of college and pro football. At this age most teens and young adults become interested in other things and most have other responsibilities that must come first. Mos t become dis-involved because of a part or full time job or their studies are too demanding. Others are just not up to the standards at which you must be to play at a higher level. If one does make it to the college level, usually they will stop playing after their college career is complete (this is typically 4 years). A professional team doesnt draft most college players, and at this point you either get drafted or you move on with your life by pursuing a career. Finally if you make it professionally, you usually become dis-involved simply because you cant compete at that level any more. Some may call it just getting older. .uf530c093e6e52c40bd96221746e5afbe , .uf530c093e6e52c40bd96221746e5afbe .postImageUrl , .uf530c093e6e52c40bd96221746e5afbe .centered-text-area { min-height: 80px; position: relative; } .uf530c093e6e52c40bd96221746e5afbe , .uf530c093e6e52c40bd96221746e5afbe:hover , .uf530c093e6e52c40bd96221746e5afbe:visited , .uf530c093e6e52c40bd96221746e5afbe:active { border:0!important; } .uf530c093e6e52c40bd96221746e5afbe .clearfix:after { content: ""; display: table; clear: both; } .uf530c093e6e52c40bd96221746e5afbe { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .uf530c093e6e52c40bd96221746e5afbe:active , .uf530c093e6e52c40bd96221746e5afbe:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .uf530c093e6e52c40bd96221746e5afbe .centered-text-area { width: 100%; position: relative ; } .uf530c093e6e52c40bd96221746e5afbe .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .uf530c093e6e52c40bd96221746e5afbe .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .uf530c093e6e52c40bd96221746e5afbe .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .uf530c093e6e52c40bd96221746e5afbe:hover .ctaButton { background-color: #34495E!important; } .uf530c093e6e52c40bd96221746e5afbe .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .uf530c093e6e52c40bd96221746e5afbe .uf530c093e6e52c40bd96221746e5afbe-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .uf530c093e6e52c40bd96221746e5afbe:after { content: ""; display: block; clear: both; } READ: Human Evolution EssayAlthough most teens and young adults quit playing football after high school, some may become re-involved shortly after completing their high school, college or professional career. Some people who have chosen to stop playing may re-involve themselves by becoming a coach at the high school or college level. Although being a coach is demanding, it is far less demanding than actually playing the game of football because you have other coaches with you sharing the responsibilities. Some people are able to find time between their studies and jobs to coach. Only a select few actually are able to coach that is why once you quit playing football you usually n ever play football again. Playing the game of football also helps you in achieving identity. It helps build your self-confidence because every time make a nice block or a great tackle it increases your confidence that you can do it consistently. This usually extends to other aspects of life because you tell yourself that if you can succeed on the field you can succeed off of it as well. The fact that you were part of a team gives you a sense of accomplishment. Also in football, it doesnt matter if youre at the high school, college, or professional level, although this is mostly seen in professional football, you become a role model for younger people. They see that you playing and succeeding at the game it sometimes inspires others to work hard and drive to be the best in life. Football also gives you the identity of being a team player and not always looking out for yourself. People respect that and can also become an asset when applying for a job. Another concept that football addresses is doing activity. By playing football it gives you the experience of teamwork and dedication. You cant learn these in a classroom you must participate in some activity with others to learn these very important qualities and football is a great source of this. In doing activity it gives you a sense of accomplishment and self-fulfillment. You might not have been the best player but you didnt quit and you persevered. Football is also great for future engagements, like getting a job, because it looks great on yourself as far as showing that you can be a team player as well as hard working. The most important aspect of football is experiencing relations. Football allows you to meet and experience many different people over the course of your career. From team meetings to practices to games you spend a lot of time with other players and you become aware of how they operate and become a unit all trying to achieve the same goals. It is important in fo otball to be able to anticipate what your teammates are going to do because not only does it make you better it makes the whole team better. When you play football you build relationships with your teammates, more often than not, you make a lot of new friends. You find yourself spending time with other players off the field such as watching the big game, going to a bar, playing a round of golf in the off season, or simply just hang out;. Football allows you to build relationships that last a lifetime not just a couple of weeks. If people didnt build relationships in football, it would be more of an individual sport and the team would come second. It is also important as a player to have a good relationship with your coach. This allows you to tell him something that is bothering you, ask questions and ask how you can improve as a player. Football has been my life for close to a decade. I have built many friendships over those years and most of those I still have. In my own case I sta rted playing football when I was nine years old for a peewee team. I really wanted to play so my parents enrolled me. It was easy convincing them, considering my father is a legend in Windsor when it comes to football (I dont mean to brag but this is what I was told). I wasnt exactly the best player on the team, but I showed up for practice, team meetings, and games and dedicated myself to it. I loved the game then, just as much as I love it today. Then I played high school football for 5 years and my dedication paid off because in high school I started every game, even though I wasnt the best player on the team. Football also helped me in many of my classes because of learning determination and self-confidence; I was able to increase my marks over the 5 years from sixties in grade nine to seventies and eighties in OAC. I believe football had a lot to do with that. After high school my football career ended and I became dis-involved in football because I couldnt play at the college level. I was a solid player in high school I wasnt a great player. Re-involvement came fairly quick for me because a short year later, this year as a matter of fact, I was asked to be a coach for a local high school team. I was honored by the offer and of coarse I took the opportunity. The fact that my father was the head coach probably had something to do with it, but I was just ecstatic to be back on the football field again, even though I wasnt the one playing. With this coaching position Ive experienced a lot of new relationships. From meeting a whole new group of players to other coaches its been a learning experience and Ive already built new friendships that I know will last a long time. But the most important relationship I believe I have built because of this experience is a better relationship with my father. In the past we have had our differences but because of football weve been closer than I think weve ever been before. Football has proven to me to be worth while. It h as taught me dedication, determination, teamwork among others. Football has given me an identity of being a part of team and friendships I will have for a lifetime, especially with the person that means the most to me#8230; my father.